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Captcha plugin is the best security solution that protects your WordPress website forms from spam entries by means of math logic. It can be used for login, registration, password recovery, comments and popular contact forms.

Users are required to complete the math equation before the form can be submitted. You can configure captcha complexity using three basic maths actions such as add, subtract and multiply. Stop spam now!

Requires WordPress at least: 3.8

Documentation & Videos

Brief Overview
Purchase, Installation, Configuration
Installation
Purchase, Installation & Configuration

Features

Description Free Plus Pro
Add captcha to:  xicons_yes  xicons_yes  xicons_yes
Enhance captcha protection with:
  • Letters, numbers and images
  • Simple math actions such as add, subtract and multiply
 xicons_yes  xicons_yes  xicons_yes
Hide captcha for:
  • Registered users in comments form
  • Whitelisted IP addresses
 xicons_yes  xicons_yes  xicons_yes
Set captcha submission time limit  xicons_yes  xicons_yes  xicons_yes
Refresh captcha option  xicons_yes  xicons_yes  xicons_yes
Image packages with hand-drawn digits  xicons_yes  xicons_yes  xicons_yes
Edit captcha title and notifications  xicons_yes  xicons_yes  xicons_yes
Merge IP addresses from Limit Attempts by BestWebSoft plugin with Captcha whitelist  xicons_yes  xicons_yes  xicons_yes
Add custom code via plugin settings page  xicons_yes  xicons_yes  xicons_yes
Compatible with latest WordPress version  xicons_yes  xicons_yes  xicons_yes
Incredibly simple settings for fast setup without modifying code  xicons_yes  xicons_yes  xicons_yes
Detailed step-by-step documentations and videos  xicons_yes  xicons_yes  xicons_yes
Multi-lingual (39+ languages) and RTL ready  xicons_yes  xicons_yes  xicons_yes
Contact Form 7 compatible (since v 3.4)  xicons_no  xicons_yes  xicons_yes
BuddyPress compatible: registration, comments and create a group forms  xicons_no  xicons_no  xicons_yes
WooCommerce compatible: login form  xicons_no  xicons_no  xicons_yes
Subscriber by BestWebSoft compatible  xicons_no  xicons_no  xicons_yes
Use multisite network to configure sub websites  xicons_no  xicons_no  xicons_yes
Captcha submission time limit for separate forms  xicons_no  xicons_no  xicons_yes
Add and enable unlimited number of image packages at the same time  xicons_no  xicons_no  xicons_yes
Get answer to your support question within one business day  xicons_no  xicons_no  xicons_yes

If you have a feature, suggestion or idea you’d like to see in the plugin, we’d love to hear about it! Suggest a Feature

Translation

* Arabic (ar_AR) (thanks to Albayan Design Hani Aladoli)
* Bangla (bn_BD) (thanks to SM Mehdi Akram, www.shamokaldarpon.com)
* Brazilian Portuguese (pt_BR) (thanks to Breno Jacinto, www.iconis.org.br)
* Bulgarian (bg_BG) (thanks to Nick)
* Catalan (ca) (thanks to Psiete)
* Chinese (zh_CN) (thanks to TIM)
* Taiwan (zh_TW) (thanks to Henry H)
* Croatian (hr) (thanks to Daniel)
* Czech (cs_CZ) (thanks to Crysman)
* Danish (da_DK) (thanks to Byrial Ole Jensed)
* Dutch (nl_NL) (thanks to Bart Duineveld)
* Estonian (et) (thanks to Ahto Tanner) * Greek (el) (thanks to Aris, www.paraxeno.net)
* Farsi/Persian (fa_IR) (thanks to Mostafa Asadi, www.ma73.ir, Morteza Gholami)
* Finnish (fi) (thanks to Mikko Sederholm)
* French (fr_FR) (thanks to Martel Benjamin, Capronnier luc)
* German (de_DE) (thanks to Thomas Hartung, Lothar Schiborr)
* Hebrew (he_IL) (thanks to Sagive SEO)
* Hindi (hi_IN) (thanks to Outshine Solutions, www.outshinesolutions.com)
* Hungarian (hu_HU) (thanks to Peter Aprily)
* Japanese (ja) (thanks to Foken)
* Indonesian (id_ID) (thanks to Nasrulhaq Muiz, www.al-badar.net)
* Italian (it_IT) (thanks to Marco)
* Latvian (lv) (thanks to Juris O)
* Lithuanian (lt_LT) (thanks to Arnas)
* Norwegian (nb_NO) (thanks to Tore Hjartland)
* Polish (pl_PL) (thanks to Krzysztof Opuchlik)
* Portuguese (pt_PT) (thanks to João Paulo Antunes)
* Romanian (ro_RO) (thanks to Ciprian)
* Russian (ru_RU) * Serbian (sr_RS) (thanks to Radovan Georgijevic)
* Slovak (sk_SK) (thanks to Branco Radenovich)
* Slovenian (sl_SI) (thanks to Uroš Klopčič, www.klopcic.net)
* Spanish (es_ES) (thanks to Iván García Cubero)
* Swedish (sv_SE) (thanks to Christer Rönningborg, Blittan)
* Tagalog (tl) (thanks to Roozbeh Jalali, www.languageconnect.net)
* Turkish (tr_TR) (thanks to Can Atasever, www.canatasever.com)
* Ukrainian (uk)
* Vietnamese (vi_VN) (thanks to NDT Solutions)

Some of these translations are not complete. We are constantly adding new features which should be translated. If you would like to create your own language pack or update the existing one, you can send the text of PO and MO files to BestWebSoft and we’ll add it to the plugin. You can download the latest version of the program for work with PO and MO files Poedit.

  1. 1. Upload the captcha or captcha-pro folder to the /wp-content/plugins/ directory.
  2. 2. Activate the plugin via the ‘Plugins’ menu in WordPress.
  3. 3. Plugin settings are located in ‘BWS Plugins’, ‘Captcha’/’Captcha Pro’.

View a Step-by-step Instruction on Captcha Installation

Instruction on Installation

Why the CAPTCHA is missing in the comments form?

The Captcha by BestWebSoft plugin displays the CAPTCHA for those comments forms which were written in the same way as comments forms for the standard WordPress themes.

Unfortunately, the plugin is incompatible with comments forms generated by using SAAS (eg: Disqus or JetPack comments forms).

If you don’t use SAAS comments forms, please follow the next steps:

1. Using FTP, please go to {wp_root_folder}/wp-content/themes/{your_theme}.
2. Find and open comments.php file. It is possible that the file that is used to display the comment form in your theme called differently or comment form output functionality is inserted directly in the other templates themes (eg single.php or page.php). In this case, you need to open the corresponding file.
3. Make sure that the file contains one of the next hooks:
do_action ( 'comment_form_logged_in_after' ),
do_action ( 'comment_form_after_fields' )
or
do_action ( 'comment_form' ).
If you didn’t find one of these hooks, then put the string <?php do_action( 'comment_form', $post->ID ); ?> in the comment form.

1. Install the Captcha Pro plugin and activate it.
2. (Optional) If you want to use own settings for your custom forms (for example, for your contact and sign up forms), please follow steps below:

a. Open “functions.php” file of your theme in the edit mode;
b. Add the following lines to the end of the file:

 function add_my_forms( $forms ) { 
	 $forms['form_slug']   = "Form Display Name"; 
	 $forms['form_2_slug'] = "Form 2 Display Name"; 
         return $forms; 
   } 
  add_filter( 'cptch_add_form', 'add_my_forms' );

Please don’t use the next form slugs since they are predefined by plugin settings: general, wp_login, wp_register, wp_lost_password, wp_comments, bws_contact, bws_subscriber, buddypress_register, buddypress_comments, buddypress_group, cf7_contact, woocommerce_login, woocommerce_register, woocommerce_lost_password, woocommerce_checkout.

c. Save file changes;
d. Go to the “Settings” tab on the plugin settings page (Admin Dashboard -> BWS Panel -> Captcha);

If everything is OK, you will see new tabs with labels which you specified in the “cptch_add_form_tab” hook call function.

e. Switch to new tabs and configure form options on them as you need;
f. Click “Save changes”;

In case when you don`t want to use own settings for displaying the CAPTCHA in your custom form, the settings from “General Options” tab from the plugin settings page will be used.

3. Open the file with the form (where you would like to add CAPTCHA);
5. Find a place to insert the code for the CAPTCHA output;
5. Insert the following lines:

<?php echo apply_filters( 'cptch_display', '', 'my_contact_form' ); ?>

In this example, the second parameter is a slug for your custom form. If you don`t use the custom form settings (see point 2 of this instructions) you can leave it empty:

<?php echo apply_filters( 'cptch_display', '' ); ?>

6. After that, you should add the following lines to the function of the entered data checking:

<?php $error = apply_filters( 'cptch_verify', true ); 
	if ( true === $error ) { /* the CAPTCHA answer is right */ 
	    /* do necessary action */ 
	} else { /* the CAPTCHA answer is wrong or there are some other errors */ 
	    echo $error; /* display the error message or do other necessary actions in case when the CAPTCHA test was failed */ 
} ?>

If there is a variable in the check function responsible for the errors output, you can concatenate variable $error to this variable. If the ‘cptch_verify’ filter hook returns ‘true’, it means that you have entered the CAPTCHA answer properly. In all other cases, the function will return the string with the error message.

I got the message “On your site uses functions … that are deprecated”. What should I do?

Starting with version 4.2.3, we have changed the functionality for faster and more correct plugin work.
You need to replace the output and response checking for the CAPTCHA in your form according to the instruction by the link http://support.bestwebsoft.com/hc/en-us/articles/202353439 or the appropriate point in the FAQ (see “I would like to add Captcha to the custom form on my website. How can I do this? “).

After making changes, simply close the message in the admin panel.

If you completely updated the CAPTCHA interaction with your form the message will not be displayed any more.

I would like to add Captcha Pro to the Contact Form 7. How can I do this?

  1. 1. Make sure you enabled “Contact Form 7″ on the Captcha settings page.
  2. 2. Go to “Contact Form 7″ form where you want to make use of Captcha.
  3. 3. For the Contact Form 7 since version 4.2 on the edit form page select the BWS CAPTCHA form-tag, and insert it into your form.
    For the Contact Form 7 below version 4.2 on the edit form page find a dropdown menu with the form fields, select BWS CAPTCHA and insert it into your form.

I would like to add Captcha to the custom form on my website. How can I do this?

  1. 1. Install the Captcha plugin and activate it.
  2. 2. Open the file with the form (where you would like to add captcha to).
  3. 3. Find a place to insert the code for the captcha output.
  4. Insert the necessary lines:

if( function_exists( 'cptch_display_captcha_custom' ) ) { echo "<input type='hidden' name='cntctfrm_contact_action' value='true' />"; echo cptch_display_captcha_custom() }; if( function_exists( 'cptchpr_display_captcha_custom' ) ) { echo "<input type='hidden' name='cntctfrm_contact_action' value='true' />"; echo cptchpr_display_captcha_custom() };

If the form is HTML you should insert the line with the PHP tags:

<?php if( function_exists( 'cptch_display_captcha_custom' ) ) { echo "<input type='hidden' name='cntctfrm_contact_action' value='true' />"; echo cptch_display_captcha_custom(); } if( function_exists( 'cptchpr_display_captcha_custom' ) ) { echo "<input type='hidden' name='cntctfrm_contact_action' value='true' />"; echo cptchpr_display_captcha_custom(); } ?>

Then you should add the lines to the function of the entered data checking

if ( ( function_exists( 'cptch_check_custom_form' ) && cptch_check_custom_form() !== true ) || ( function_exists( 'cptchpr_check_custom_form' ) && cptchpr_check_custom_form() !== '' ) ) echo "Please complete the CAPTCHA.";

or

<?php if ( ( function_exists( 'cptch_check_custom_form' ) && cptch_check_custom_form() !== true ) || ( function_exists( 'cptchpr_check_custom_form' ) && cptchpr_check_custom_form() !== '' ) ) echo "Please complete the CAPTCHA." ?>

You could add this line to the variable and display this variable in the required place instead of echo “Please complete the CAPTCHA.”. If there is a variable (responsible for the errors output) in the check function, this phrase can be added to this variable. If the function returns ‘true’, it means that you have entered captcha properly. In all other cases the function will return ‘false’.

Can I move the Captcha block in the comment form?

It depends on the comments form. If the hook call by means of which captcha works (after_comment_field or something like this) is present in the file comments.php, you can change captcha positioning by moving this hook call. Please find the file ‘comments.php’ in the theme and change position of the line `do_action( ‘comment_form_after_fields’ );` or any similar line – place it under the Submit button. In case there is no such hook in the comments file of your theme, then, unfortunately, this option is not available.

I have some problems with the plugin’s work. What Information should I provide to receive proper support?

Please make sure that the problem hasn’t been discussed yet on our forum (http://support.bestwebsoft.com). If no, please provide the following data along with your problem’s description:

  1. 1. the link to the page where the problem occurs.
  2. 2. the name of the plugin and its version. If you are using a pro version – your order number.
  3. 3. the version of your WordPress installation.
  4. 4. copy and paste into the message your system status report. Please read more here: Instruction on System Status .

Captcha Pro changelog:

V4.2.4 – 18.08.2016
* Bugfix : The bug with the update of the plugin database has been fixed.

V4.2.3 – 15.08.2016
* NEW : An ability to choose own CAPTCHA settings for each form which is compatible with the plugin.
* NEW : An ability to expand the list of forms which are compatible with the plugin via WordPress hooks.
* NEW : An ability to show the CAPTCHA after the page is loaded.
* NEW : The “

Time limit is exhausted. Please reload CAPTCHA.

” shortcode is added.
* Update : The HTML structure of the plugin settings page has been updated.
* Update : The Chinese language file has been updated (thanks to TIM).
* Update : BWS panel section has been updated.
* Bugfix : The bug with displaying CSS ID for the CAPTCHA block has been fixed.

V1.7.0 – 04.07.2016
* Update : The French file has been updated.
* Update : BWS panel section was updated.

V1.6.9 – 15.06.2016
* NEW : An ability to load image packages has been added.
* NEW : An ability to use SVG images for CAPTCHA has been added.
* NEW : A compatibility with the WooCommerce Checkout form has been added.
* NEW : A notice about Captcha’s time limit expiration has been added.
* Update : Compatibility options with the WooCommerce forms have been updated.
* Update : The appearance of the “Enable image packages” settings block has been updated.
* Update : The French file has been updated.
* Bugfix : The bug with the displaying of the whitelist pagination has been fixed.
* Bugfix : The bug with the displaying images from different packages has been fixed.

V1.6.8 – 28.03.2016
* NEW : Functionality to use Captcha with WooCommerce was added.
* New : Ability to add custom styles.
* Update : Functionality to use Captcha with BuddyPress login widget was added.
* Bugfix : Lower-case equivalents for all numbers have been changed.

V1.6.7 – 01.02.2016
* Bugfix : Captcha’s work in the multisite registration form has been fixed.
* Bugfix : SQL injection vulnerability has been fixed (thanks to www.ncsc.nl).
* Bugfix : The bug of displaying captcha error when adding a new user in the multisite has been fixed.
* Update : The French language file has been updated.

V1.6.6 – 17.12.2015
* Bugfix : Bug with the definition of type of images has been fixed.

V1.6.5 – 15.12.2015
* Bugfix : Error with image packages selecting for using in CAPTCHA has been fixed.

V1.6.4 – 10.12.2015
* New : Ability to use images in Captcha.
* New : Ability to reload Captcha.
* New : Ability to load list of IP from whitelist of Limit Attempts by BestWebSoft plugin to Captcha whitelist.
* New : Ability to use whitelist of Limit Attempts by BestWebSoft plugin.
* New : Ability to set time limit for different forms, after which the Captcha can not be passed.
* Bugfix : Bug with Captcha reloading when forms data handled via ajax was fixed.
* Bugfix : XSS vulnerability with displaying search results for CAPTCHA whitelist was fixed (thanks to Colette Chamberland).
* Bugfix : XSS vulnerability with user authentification was fixed (thanks to Colette Chamberland).
* Update : Structure of plugin`s settings page was updated.
* Update : The French and Hungarian language files were updated.
* Update : Functional compatibility with the plugin Limit Attempts Pro was updated. Compatible with Limit Attempts Pro v1.1.1 and older will not be supported any more after 1.06.2016.

V1.6.3 – 24.09.2015
* New : The whitelist functionality was expanded: Ability to add current IP to the whitelist.
* New : The whitelist functionality was expanded: If the IP is in the whitelist, then the indicated message will be displayed instead of the captcha.
* Update : We updated all functionality for wordpress 4.3.1.
* Update : The French language file is updated.
* Bugfix : We fixed SQL injection vulnerability.

V1.6.2 – 18.08.2015
* New : Ability to not display Captcha for whitelisted IP.
* Update : We updated all functionality for wordpress 4.2.4.
* Update : We updated structure of plugin settings page.
* Bugfix : We fixed bug with displaying Captcha for rtl-oriented languages.

V1.6.1 – 02.07.2015
* New : Ability to restore settings to defaults.

V1.6.0 – 16.06.2015
* Update : We updated all functionality for Limit Attempts Pro plugin V1.0.9.

V1.5.9 – 10.06.2015
* Update : We updated all functionality for Contact Form 7 v4.2.

V1.5.8 – 02.06.2015
* Bugfix : We fixed error of a visual display of the settings page.
* Bugfix : We fixed the Required symbol that has not been displayed on login, registration and password recovery form.

V1.5.7 – 13.05.2015
* Update : The French language file is updated.
* Update : We updated all functionality for wordpress 4.2.2.

V1.5.6 – 30.04.2015
* Update : We updated all functionality for wordpress 4.2.1.

V1.5.5 – 20.03.2015
* Update : The Croatian, French and Farsi languages file are updated.
* Bugfix : The bug with undefined function ‘get_plugin_data’ is fixed.
* Update: Error display with the comments form was changed.

V1.5.4 – 13.02.2015
* NEW: We added the ability to change error messages.

V1.5.3 – 28.01.2015
* Update : We updated all functionality for plugin Subscriber Pro.

V1.5.2 – 27.01.2015
* Update : We updated all functionality for Contact Form 7 v4.1.

V1.5.1 – 23.12.2014
* Update : The language files are updated.
* Update : We updated all functionality for wordpress 4.1.

V1.5.0 – 27.11.2014
* Bugfix : Security Vulnerability was fixed.
* Bugfix : The bug with error message on multisite is fixed.
* Bugfix : The bug with buddypress comment form is fixed.
* NEW : We added the functionality to configure Captcha on the Network.

V1.4.9 – 18.11.2014
* Bugfix : The bug with undefined function is fixed.

V1.4.8 – 17.11.2014
* NEW : The Portuguese language file is added to the plugin.
* Update : The French language file is updated.
* Bugfix : The performance issue was fixed.
* Update : We added padding style for captcha input.

V1.4.7 – 15.10.2014
* Update : The Brazilian Portuguese language file is updated.
* NEW: We added filter ‘cptchpr_forms_list’ in the plugin settings page.

V1.4.6 – 19.09.2014
* Update : The Farsi/Persian language file is updated.
* Update : We updated all functionality for wordpress 4.0.

V1.4.5 – 12.08.2014
* Bugfix : Security Exploit was fixed.
* Update : The Farsi/Persian language file is updated.
* Update : We updated all functionality for wordpress 4.0-beta3.

V1.4.4 – 28.07.2014
* Update : We updated all functionality for Limit Attempts plugin.

V1.4.3 – 18.07.2014
* Update : We updated all functionality for Contact Form 7 v3.9.

V1.4.2 – 26.05.2014
* NEW : We added functionality to use Captcha with Subscriber.

V1.4.1 – 16.05.2014
* Bugfix : The bug with Buddypress buttons is fixed.

V1.4.0 – 12.05.2014
* Update : We updated all functionality for wordpress 3.9.1
* Update : The Ukrainian language is updated in the plugin.
* Update : The French language file is updated.

V1.3.9 – 15.04.2014
* Update : We updated all functionality for wordpress 3.8.3.

V1.3.8 – 10.03.2014
* Bugfix : Plugin optimization is done.
* Update : The French language file is updated.

V1.3.7 – 19.02.2014
* Bugfix : The bug of displaying captha error when adding a new user in the multisite is fixed.

V1.3.6 – 12.02.2014
* Bugfix : Comflict with plugin Limit Login Attempts is fixed (a false login when logging out of the WP backend).
* Bugfix : We fixed displaying captcha in contact form.

V1.3.5 – 03.02.2014
* Update : We updated all functionality for wordpress 3.8.1.
* Update : Changed filter for captcha in the login form.

V1.3.4 – 14.01.2013
* Update : BWS plugins section is updated.

V1.3.3 – 26.12.2013
* Update : We updated all functionality for wordpress 3.8.
* Update : The French language file is updated.

V1.3.2 – 10.12.2013
* NEW : A notice when changing settings on the plugin’s settings page was added.
* Update : We added class for the div-block of captcha in the buddypress registration form.
* Update : The Ukrainian language file is updated.
* Update : Captcha protection is improved.
* Update : We updated all functionality for wordpress 3.8-RC1.

V1.3.1 – 18.11.2013
* NEW : The Indonesian language file is added to the plugin.
* NEW : The Taiwan language file is added to the plugin.

V1.3 – 05.11.2013
* NEW : Add checking installed wordpress version.
* Update : We updated security functionality.
* Update : The French language file is updated.

V1.2 – 31.10.2013
* NEW : We added ability to use Captcha with plugin Contact Form 7.
* Update : We updated all functionality for wordpress 3.7.1.
* Update : Activation of radio button or checkbox by clicking on its label.

V1.1 – 25.10.2013
* NEW : Ability to change required symbol (asterisk).
* Bugfix : File format according JavaScript and CSS Coding Standards.
* Update : We updated all functionality for wordpress 3.7.

V1.0.3 – 17.10.2013
* Update : The Italian language file is updated.
* NEW : The Catalan language file is added to the plugin.
* Update : The Brazilian Portuguese language file is updated.
* Update : The Ukrainian language file is updated.
* Bugfix : The duplicate style is removed.
* Update : BWS plugins section is updated.

V1.0.2 – 23.09.2013
* Bugfix : Captcha protection is improved by changing hidden values in every session.
* Update : The French language file is updated.
* Update : We updated all functionality for wordpress 3.6.1.

V1.0.1 – 10.09.2013
* Update : We added explanations on the plugin settings page.
* Update : The German language file is updated in the plugin.

V1.0 – 02.09.2013
* NEW : We added functionality to use Captcha with BuddyPress.

Captcha Free changelog:

V4.2.4 – 18.08.2016
* Bugfix : The bug with the update of the plugin database has been fixed.

V4.2.3 – 15.08.2016
* NEW : An ability to choose own CAPTCHA settings for each form which is compatible with the plugin.
* NEW : An ability to expand the list of forms which are compatible with the plugin via WordPress hooks.
* NEW : An ability to show the CAPTCHA after the page is loaded.
* NEW : The “

Time limit is exhausted. Please reload CAPTCHA.

” shortcode is added.
* Update : The HTML structure of the plugin settings page has been updated.
* Update : The Chinese language file has been updated (thanks to [TIM](mailto:416441872@qq.com)).
* Update : BWS panel section has been updated.
* Bugfix : The bug with displaying CSS ID for the CAPTCHA block has been fixed.

V4.2.2 – 15.07.2016
* Update : BWS panel section was updated.

V4.2.1 – 04.07.2016
* Update : The French file has been updated.
* Update : BWS panel section was updated.

V4.2.0 – 15.06.2016
* NEW : A notice about Captcha’s time limit expiration has been added.
* Update : The appearance of the “Enable image packages” settings block has been updated.
* Update : The French file has been updated.
* Bugfix : The bug with the displaying of the whitelist pagination has been fixed.

V4.1.9 – 28.03.2016
* Bugfix : Lower-case equivalents for all numbers have been changed.
* New : Ability to add custom styles.

V4.1.8 – 01.02.2016
* Bugfix : Captcha’s work in the multisite registration form has been fixed.
* Bugfix : SQL injection vulnerability has been fixed (thanks to www.ncsc.nl).
* Bugfix : The bug of displaying captha error when adding a new user in the multisite has been fixed.
* Update : The French language file has been updated.

V4.1.7 – 17.12.2015
* Bugfix : Bug with the definition of type of images has been fixed.

V4.1.6 – 10.12.2015
* New : Ability to use images in Captcha.
* New : Ability to reload Captcha.
* New : Ability to load list of IP from whitelist of Limit Attempts by BestWebSoft plugin to Captcha whitelist.
* New : Ability to use whitelist of Limit Attempts by BestWebSoft plugin.
* New : Ability to set time limit, after which the Captcha can not be passed.
* Bugfix : Bug with Captcha reloading when forms data handled via ajax was fixed.
* Bugfix : XSS vulnerability with displaying search results for Captcha whitelist was fixed (thanks to Colette Chamberland).
* Bugfix : XSS vulnerability with user authentification was fixed (thanks to Colette Chamberland).
* Update : Structure of plugin`s settings page was updated.
* Update : The French and Hungarian language files were updated.

V4.1.5 – 18.09.2015
* New : The whitelist functionality was expanded: Ability to add current IP to the whitelist.
* New : The whitelist functionality was expanded: If the IP is in the whitelist, then the indicated message will be displayed instead of the captcha.
* Update : We updated all functionality for wordpress 4.3.1.
* Update : The French language file is updated.
* Bugfix : We fixed SQL injection vulnerability.

V4.1.4 – 18.08.2015
* New : Ability to hide Captcha for whitelisted IP.
* Update : We updated all functionality for wordpress 4.2.4.
* Update : We updated structure of plugin settings page.
* Bugfix : We fixed bug with displaying Captcha for rtl-oriented languages.

V4.1.3 – 02.07.2015
* New : Ability to restore settings to defaults.

V4.1.2 – 02.06.2015
* Bugfix : We fixed error of a visual display of the settings page.
* Bugfix : We fixed the Required symbol that has not been displayed on login, registration and password recovery form.

V4.1.1 – 04.05.2015
* Update : We updated all functionality for wordpress 4.2.1.

V4.1.0 – 20.03.2015
* Update : The Croatian, French and Farsi languages file are updated.
* Update: Error display with the comments form was changed.

V4.0.9 – 18.02.2015
* NEW: We added the ability to change error messages.

V4.0.8 – 23.12.2014
* Update : The language files are updated.
* Update : We updated all functionality for wordpress 4.1.

V4.0.7 – 27.11.2014
* Bugfix : Security Vulnerability was fixed.
* Bugfix : The bug with error message on multisite is fixed.

V4.0.6 – 17.11.2014
* NEW : The Portuguese language file is added to the plugin.
* Update : The French language file is updated.
* Bugfix : The performance issue was fixed.
* Update : We added padding style for captcha input.

V4.0.5 – 15.10.2014
* Update : The Brazilian Portuguese language file is updated.
* NEW: We added filter ‘cptch_forms_list’ in the plugin settings page.

V4.0.4 – 10.09.2014
* Update : The Farsi language file is updated.
* Update : We updated all functionality for wordpress 4.0.

V4.0.3 – 07.08.2014
* Bugfix : Security Exploit was fixed.

V4.0.2 – 28.07.2014
* Update : We updated all functionality for Limit Attempts plugin.

V4.0.1 – 12.05.2014
* Bugfix : We fixed syntax error.

V4.0.0 – 12.05.2014
* Update : We updated all functionality for wordpress 3.9.1
* Update : The Ukrainian language is updated in the plugin.
* Update : The French language file is updated.

V3.9.9 – 11.04.2014
* Update : We updated all functionality for wordpress 3.8.2.

V3.9.8 – 10.03.2014
* Bugfix : We fixed error related to custom plugins folder.

V3.9.7 – 10.03.2014
* Bugfix : Plugin optimization is done.
* Update : The French language file is updated.

V3.9.6 – 12.02.2014
* Bugfix : Conflict with plugin Limit Login Attempts is fixed (a false login when logging out of the WP backend).
* Bugfix : We fixed displaying captcha in contact form.

V3.9.5 – 03.02.2014
* Update : We updated all functionality for wordpress 3.8.1.
* Update : Changed filter for captcha in the login form.

V3.9.4 – 16.01.2014
* Update : BWS plugins section is updated.

V3.9.3 – 25.12.2013
* Update : The French language file is updated.
* Update : We updated all functionality for wordpress 3.8.

V3.9.2 – 10.12.2013
* NEW : A notice when changing settings on the plugin’s settings page was added.
* Update : We updated all functionality for wordpress 3.8-RC1.

V3.9.1 – 29.11.2013
* Update : The Ukrainian language file is updated to the plugin.
* Update : Screenshots are updated.

V3.9 – 22.11.2013
* NEW : The Taiwan language file is added to the plugin.
* Update : BWS plugins section is updated.

V3.8.9 – 15.11.2013
* Update : The French language file is updated.
* NEW : The Indonesian language file is added to the plugin.

V3.8.8 – 05.11.2013
* NEW : Add checking installed wordpress version.
* Update : We updated security functionality.

V3.8.7 – 31.10.2013
* Update : We updated all functionality for wordpress 3.7.1.
* Update : Activation of radio button or checkbox by clicking on its label.
* Update : We added Tooltips for settings page.

V3.8.6 – 25.10.2013
* NEW : Ability to change required symbol (asterisk).
* Update : We updated all functionality for wordpress 3.7.

V3.8.5 – 17.10.2013
* Update : The Italian language file is updated.
* NEW : The Catalan language file is added to the plugin.

V3.8.4 – 8.10.2013
* Bugfix : The duplicate style is removed.
* Update : BWS plugins section is updated.

V3.8.3 – 1.10.2013
* Update : The Brazilian Portuguese language file is updated.
* Update : The Ukrainian language file is updated.

V3.8.2 – 23.09.2013
* Bugfix : Captcha protection is improved by changing hidden values in every session.

V3.8.1 – 13.09.2013
* Update : The French language file is updated.
* Update : We updated all functionality for wordpress 3.6.1.

V3.8.0 – 06.09.2013
* Update : The German language file is updated in the plugin.

V3.7.9 – 30.08.2013
* Update : The German language file is updated in the plugin.
* Update : Function for displaying BWS plugins section placed in a separate file and has own language files.

V3.7.8 – 23.08.2013
* Update : The French language file is updated in the plugin.
* Update : The Brazilian Portuguese language file is updated in the plugin.
* Bugfix : The bug of displaying captha error when adding a new user in the multisite is fixed.
* NEW : The Tagalog language file is added to the plugin.

V3.7.7 – 13.08.2013
* Update : The Japanese language file is updated in the plugin.

V3.7.6 – 05.08.2013
* NEW : The Slovenian language file is added to the plugin.
* Update : We updated all functionality for wordpress 3.6.

V3.7.5 – 30.07.2013
* NEW : The Croatian language file is added to the plugin.

V3.7.4 – 24.07.2013
* Bugfix : Added html-blocks and attributes in captcha displaying.
* Update : The Czech language file is updated in the plugin.
* Update : The Brazilian Portuguese language file is updated in the plugin.
* Update : The Swedish language file is updated in the plugin.

V3.7.3 – 18.07.2013
* NEW : Added an ability to view and send system information by mail.

V3.7.2 – 09.07.2013
* NEW : The Bangla language file is added to the plugin.
* Update : The French language file is updated in the plugin.
* Update : We updated all functionality for wordpress 3.5.2.

V3.7.1 – 27.06.2013
* NEW : The Latvian language file is added to the plugin.

V3.7 – 21.06.2013
* NEW : Ability to use Captcha with Contact Form Pro.

V3.6 – 03.06.2013
* Update : BWS plugins section is updated.

V3.5 – 07.05.2013
* Update : The Bulgarian language file is updated in the plugin.
* Update : The Brazilian Portuguese language file is updated in the plugin.

V3.4 – 18.04.2013
* Update : The French language file is updated in the plugin.

V3.3 – 08.04.2013
* Update : The English language is updated in the plugin.

V3.2 – 22.03.2013
* Bugfix : The bug related to add Captcha in Contact Form for multisiting is fixed.

V3.1 – 25.02.2013
* NEW : The Bulgarian language file is added to the plugin.

V3.0 – 08.01.2013
* Bugfix : Display bug is fixed.

V2.4.4 – 31.01.2013
* Bugfix : The admin menu bugs are fixed.

V2.4.3 – 30.01.2013
* NEW : The Estonian language file is added to the plugin.

V2.4.2 – 28.01.2013
* NEW : The Lithuanian language file is added to the plugin.
* Update : We updated all functionality for wordpress 3.5.1.

V2.4.1 – 02.01.2013
* Bugfix : call_user_func_array() bug is fixed.

V2.4 – 21.12.2012
* NEW : Romanian and Serbian and Slovak language files are added to the plugin.
* Update : We updated the coding logic of Captcha.
* Update : We updated all functionality for wordpress 3.5.

V2.34 – 08.10.2012
* NEW : Chinese and Greek language files are added to the plugin.

V2.33 – 25.07.2012
* Bugfix : Change settings bug was fixed.

V2.32 – 24.07.2012
* NEW : Arabic, Hungarian, Japanese language files are added to the plugin.
* Bugfix : Cross Site Request Forgery bug was fixed.

V2.31 – 10.07.2012
* NEW : Vietnamese language file is added to the plugin.
* Update : We updated Hebrew language file.
* Update : We updated all functionality for wordpress 3.4.1.

V2.30 – 04.07.2012
* Bugfix: The bug related to the forced double login in the admin panel was fixed.

V2.29 – 27.06.2012
* NEW : Hebrew language file is added to the plugin.
* Update : We updated all functionality for wordpress 3.4.

V2.28 – 11.06.2012
* NEW : Greek and Hindi language files are added to the plugin.

V2.27 – 20.03.2012
* NEW : Swedish language file is added to the plugin.

V2.26 – 12.03.2012
* NEW : Turkish language file is added to the plugin.

V2.25 – 02.03.2012
* NEW : Finnish language file is added to the plugin.

V2.24 – 24.02.2012
* Change : Code that is used to connect styles and scripts is added to the plugin for correct SSL verification.

V2.23 – 17.02.2012
* NEW : Norwegian language file is added to the plugin.

V2.22 – 14.02.2012
* Bugfix: Danish language files are edited in the plugin.

V2.21 – 07.02.2012
* NEW : Czech language file is added to the plugin.

V2.20 – 31.01.2012
* NEW : Ukrainian language file is added to the plugin.

V2.19 – 18.01.2012
* Bugfix : Sintax errors were fixed.

V2.18 – 18.01.2012
* NEW : Farsi/Persian, Italian language files are added to the plugin.
* Bugfix : Session errors and ‘undefined index’ error were fixed.

V2.17 – 12.01.2012
* NEW : Spain language file is added to the plugin.

V2.16 – 11.01.2012
* NEW : Polish language file is added to the plugin.

V2.15 – 05.01.2012
* NEW : Brazilian Portuguese and French language files are added to the plugin.

V2.14 – 04.01.2012
* NEW : German language file is added to the plugin.

V2.13 – 03.01.2012
* Bugfix : Impossible math operation bug was fixed.

V2.12 – 29.12.2011
* Changed : BWS plugins section.
* Bugfix : Displaying of numerals was fixed in the Dutch language.

V2.11 – 27.12.2011
* NEW : Danish language files are added to the plugin.
* Changed : All words were added to language file.

V2.10 – 07.12.2011
* Bugfix : The bug of the captcha label section is fixed in this version.

V2.09 – 07.12.2011
* Changed : +, -, * are changed to HTML Entity.

V2.08 – 01.11.2011
* NEW : Dutch language files are added to the plugin.

V2.07 – 31.10.2011
* NEW : Language files are added to the plugin.

V2.06 – 22.08.2011
* Changed : BWS Plugin’s menu section was fixed and right now it is consisted of 3 parts: activated, installed and recommended plugins.
* Bugfix : Positioning bug in admin menu is fixed.

V2.05
* Changed : BWS Plugin’s menu section was fixed and right now it is consisted from 2 parts: installed and recommended plugins.
* Bugfix : Icons displaying is fixed.
* Bugfix : Misalignment of math transaction is fixed.

V2.04
* In this version of the plugin a bug of CAPTCHa displaying (before and after the comment form) was fixed. Please upgrade Captcha plugin immediately. Thank you. For more detailed information please see FAQ

V2.03
* In this version of the plugin a bug of CAPTCHa displaying was fixed in some of the themes for release of WordPress 3.0 and above. Please upgrade Captcha plugin immediately. Thank you.

V2.02
* The bug of captcha settings page link is fixed in this version. Please upgrade Captcha plugin immediately. Thank you

V2.01
* Usability at the settings page of the plugin was improved.

V1.04
* The bug of the captcha output is fixed in this version. Please upgrade Captcha plugin immediately. Thank you.

V1.03
* Ability to add BestWebSoft Contact Form plugin to Captcha plugin from wp-admin via Settings panel is added.

V1.02
* “Settings”, “FAQ”, “Support” links are added to the plugin action page.
* Links on the plugins page are added.

V1.01
* Select functionality of mathematical actions and level of their difficulty are implemented.

Here you can download the free version of Captcha plugin.

Download from WordPress
Download from GitHub

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Help & Support

Visit our Help Center if you have any questions, our friendly Support Team is happy to help — Get Help Now


377 comments

  1. Mel Silver

    I’m a complete non-techie. Please would you let me know whether this plug-in is compatible with contact form 7 on WordPress 3.1.2?
    Many thanks!
    Mel

  2. bws_com

    Unfortunately, it is impossible to implement another captcha into contact form 7 because it has its own captcha.

  3. calsnoboarder

    We were using your plugin up until today… there was an update to Jetpack and now both Jetpack and Captcha seem to be broken if you have the WP Stats and Captcha activated. Just thought you should know in case it isn’t just our site that was affected. We have a number of plugins installed, but I turned all of them off and activated them one by one until I singled out the problematic plugins. Jetpack will work if Captcha is not active. Captcha will work if jetpack is not active. The error I see when I try to enter the admin panel using IE (doesn’t seem to affect Chrome or Firefox):

    Warning: session_start() [function.session-start]: open(/tmp/sess_v5k6kunvm1tq6fdhp4oqahp1v1, O_RDWR) failed: No space left on device (28) in /home/CHANGEDPATHMIKELONGURL/wp-content/plugins/captcha/captcha.php on line 405

  4. bws_com

    Please find string 405 in the ‘captcha.php’ file and change it to the string below:

    @session_start();

    After that save the file.

  5. Sam Crowe

    Can you use the math Captcha function with formidable forms ? Having trouble figuring out how to use this plugin.

  6. bws_com

    Instruction of ‘How to use Captcha in the custom forms’ is located in the ‘readme’ file in the folder with plugin or you can find information on the WordPress plugin’s page. If you’ll have questions regarding instruction, please contact us we will be glad to help you.

  7. Mark

    Hey,
    Captcha plugin works a treat, however on my blog the captcha is kind of right next to the comment submit button. Is there a way to make it appear under the comment box and above the submit button. So it comment, captcha, submit.

    Thank you.

  8. Mark

    Hi,
    I emailed earlier about the captcha appearing right next to the submit button on the blog comments.

    I was given this advice:

    “Please find the string below in the ‘comments.php’ file of your theme:

    do_action( ‘comment_form_after_fields’)

    And place it above the ‘Submit’ button.”

    However that string does not appear in my themes comments.php file

    thanks again.
    Mark.

  9. Pingback: WP: Anti-spam for contact forms - DesignersTalk

  10. Eric Horstman

    Thanks for your very good plugin!
    I’m using it on several websites and installed it now in a wp network ( multisites ) Captha is working, but I can’t use the “settings” . error: not enough rights to change settings

  11. Frank Müller

    Is it possible to add a autocomplete=”off” tag to captcha HTML input field?

  12. jiji

    Hello,

    I would like to use your captcha system but On my website it takes place after the button to send the message, of the blow we do not see it good… Would it be possible to place it before ?

    Thank you in advance,
    Have a good day !

  13. Anton

    Please find the string below in the ‘comments.php’ file of your theme:

    do_action( 'comment_form_after_fields')

    And place it above the ‘Submit’ button.

  14. Anton

    I moved: ID); ?> to above the submit button.

  15. Anton

    Did it as superadmin.
    Activate it as superadmin and then you need to go to the sub website’s to be able to change the settings.

  16. Anton

    You can add this tag to the source file of the plugin – the file captcha.php

  17. Anton

    The call of Captcha is done with the help of hook do_action(
    'comment_form_after_fields'), do_action( 'lostpassword_form' ), do_action( 'register_form' ) and others – it depends on form where Captcha should be displayed. It is necessary to change the position of the line with hook in order to change the position of Captcha in the form – please open the file with the form and move the line above the button “Submit”.

  18. Juan de Marcos

    Hola amigo,

    The site is under construction. I´m not familiar with php or html (currently studying them) but in the past used to program in pre-historic languages (Basic, Pascal, etc). Not completely a profane.

    Here I go.

    I need to put before the send label of a subscribe2 form within a table which is inside a text widget in my home secondary bar your captcha plugin. Is that possible? Is there any code or php piece I can write directly within the form to call your plugin?

    Peace!

    Juan de Marcos

  19. lei

    im using compositio theme, and i had to install it manullay using that given code before, very useful
    thanks a lot!

  20. Byron

    Hi. Using this plugin, looks great. Although on my custom form it still permits the registration to be sent despite not being completed, although does display the message ‘Please complete Captcha’ if not entered, how can I make it stop the form being sent unless entered correctly?

    Thanks

  21. jiji

    Hello,
    Very thanks for your help !

    I am sorry but I did not understand what I have to make…

    On one side I have my comments.php file with these lines :


    <input name="submit" type="submit" id="submit" class="contact-submit submit" tabindex="5" value="” />
    <input type="hidden" name="comment_post_ID" value="” />

    … and on the other hand I have your plugin ” captcha ”

    What line do I have to move and in which file?
    My problem concerns only the captcha for comments.

    I thank you for your help a lot and wish you a beautiful day !
    Very thanks and sorry for my bad english.

  22. Caevan

    I have the version 2.34 of Captcha and WordPress 3.42 with Photocrati theme. Whenever I activate the plugin I am unable to login to the WordPress Admin even with captcha on login disabled. I enter my username and password then get a blank screen. Is there anything I can do to make it work

  23. Denisse

    Hi I am using this plugin and in the comments section is missing the Arithmetic actions, here is an example below:

    one three =

    Please help

  24. Storm

    Hi,

    Thank you for the plug-in. I installed and activated the plug in and see it active on the WP login page. However, It is not showing up on a “Comments” page. This page in the timesten theme was renamed to “Contact Us” but it is actually the comments.php file in the theme folder.

    Any idea why the captcha is not showing up on the “Contact US” page?

    Thanks for the help.

  25. Alexander Tölke

    Tutural for WPTouch Pro ??

  26. Angel

    Hello I have the captcha plugin installed on my site and it works perfectly except when I put it on custom forms. I have the captcha displaying but it is not validating. I can submit forms with out putting anything in the captcha. What do I have to do so it can validate with the captcha?
    here is the link where you can test out the captcha on the custom form.

    http://www.maccam.tv/shop/1×1/litepanels-1×1-bicolor-flood/

    Thanks

  27. Jaime

    Hi, the plug in works great but the text box to answer the math problem doesn’t so it is confusion to visitors.

  28. bws_lvp

    The following lines are used to call the plugin Captcha in the required place:

    if( function_exists( 'cptch_display_captcha_custom' ) ) { echo ""; echo cptch_display_captcha_custom() } ;

    The following lines are used to check the correctness of added Captcha:

    if( function_exists( 'cptch_check_custom_form' ) && cptch_check_custom_form() !== true ) echo "Please complete the CAPTCHA."

    This code should be inserted in code that is responsible for the clicking on the button “Send”. Instead of ‘echo “Please complete the CAPTCHA.” it is possible to write any other message or write other handler that is called when Captcha was entered incorrectly.

  29. bws_lvp

    Hello Byron,

    It was necessary to add the check code to the right place together with the adding of captcha to code, otherwise captcha will be broken. Have you added the check code? Please describe actions you performed.

  30. bws_lvp

    Hello,

    if you want to change the position of Captcha in the form of comments, we should have access to your file comments.php.

  31. bws_lvp

    Hello Caevan,

    You should not do something else to make it work but there can be nuances in the work of the plugin with the theme.

  32. bws_lvp

    Hello Denisse,

    Please provide URL of the website and admin panel access in order to examine this issue.

  33. bws_lvp

    Hello,

    These are features of the theme – may be the necessary file are not called? Or there is no call of the necessary hook in the file with the help of which Captcha should be displayed. Please send comments file and in order to understand the cause of this problem.

  34. bws_lvp

    Hello Ani,

    It was necessary to implement Captcha verification code in addition to Captcha implementation (the instruction how to add captcha can be found in the file readme).

  35. bws_lvp

    Hello Alexander,

    Please send more detailed description about your problem.

  36. bws_lvp

    Angel,

    it is necessary to add the following lines to the check function of the entered data (where it is checked what the user enters; if everything is correct the mail will be sent)

    `if( function_exists( 'cptch_check_custom_form' ) && cptch_check_custom_form() !== true ) echo "Please complete the CAPTCHA."`
    or
    `< ?php if( function_exists( 'cptch_check_custom_form' ) && cptch_check_custom_form() !== true ) echo "Please complete the CAPTCHA." ?>`

    It is possible to enter this line in variable and display this variable in the required place instead of `echo “Please complete the CAPTCHA.”`. If there is a variable (that is responsible for the displaying of the errors) in the check function, then this phrase can be added to this variable. If the function returned true, then you have entered captcha properly. In other cases the function will return false.

  37. bws_lvp

    Hello Jaime,

    Please add the following lines to the file style.css
    .cptch_block > input{
    float:none;

  38. susie

    Will you be updating this plugin to be compatible with WP 3.5. I am currently getting this error message that I did not get with WP 3.4.2

    PHP Warning: session_start() [function.session-start]: open(/var/lib/php/session/sess_vcoksthkq00vlpls8i9o6h21s3, O_RDWR) failed: Permission denied (13) in /home/public_html/…wp-content/plugins/captcha/captcha.php on line 405,

    Thanks

  39. Paul Sims Wright

    We are using theme WP-Church. In the comment page, the background is white and, while the captcha is there, the input box is near invisible. Would be confusing for users. Would like to be able to set the color and/or border of the input box. I suspect this is relatively simple CSS but I have never quite grasped the logic of CSS. I managed to put a border around the entire captcha query but cannot find the input box.

    Thanks for a wonderful plugin

  40. Marcel

    Thank you for Contact Form and the Captcha Plugin. On my Blog i have a problem with the Captcha Plugin. It is shown when i login, but it is not shown in the Contact and on a post.

  41. bws_lvp

    Hello Marcel,

    Is it our contact form? If yes, then you have to put a tick for contact form in the Captcha plugin settings.

    Regarding the posts: you mean the comments form? Put the tick in the plugins settings + it can be the features of the theme. Not have the hook call – not have the captcha displaying.

    Kind regards

  42. bws_lvp

    Hello Paul,
    Regarding your question:

    .cptch_block > input{
    here write the necessary properties for captcha input
    }

  43. bws_lvp

    Hello Ilya,

    We are responsible only for appearance the error relatively to captcha and do this how it more comfortable, so as not to edit WordPress core.

    Kind regards

  44. bws_lvp

    Hello Susie,

    The captcha needs a session for its work. And, I think, you have some problems with the session file – don’t have permission to record into the file, but it is not the plugin error, likely it is the particular server configurations.

    Kind regards

  45. Luca Mucchi

    Dear Sirs,

    using your captcha I resolved – in a few seconds – all tedious spam problem!!

    Thank you for your ability!! Regards, Luca

  46. Alexander Kreisler

    I see this

    @session_start();

    is now on line 406, but, I still have this problem.

    Am using WP 3.5.1 with Jetpack.

    Is your *fabuluous* Captcha-Plugin still compatible?

    Many thanks for your advice!

  47. Mårre

    Moving the whole snippet to above the button was rather easy. It seems more difficult to remove the space between the title of the captcha and the input box for the answer. Can’t seem to figure out how to remove that space. Looks a bit “off” compared to the design as whole right now… :-/

  48. drunkenadmin

    I’ve been happy with the Captcha plugin for several months now, but am wondering why the version suddenly went from 2.4.4 to 3.0 with what seems to be only a minor difference according to the changelog. Any hints? Thanks for the plugin – it’s great.

Comments are closed.