Title: Captcha Code Author: WebFactory Published: 17 July 2012 Last modified: 3 December 2025 --- Search plugins ![](https://ps.w.org/captcha-code-authentication/assets/banner-772x250.png?rev=574646) ![](https://ps.w.org/captcha-code-authentication/assets/icon-256x256.png?rev=3013521) # Captcha Code By [WebFactory](https://profiles.wordpress.org/webfactory/) [Download](https://downloads.wordpress.org/plugin/captcha-code-authentication.3.3.zip) * [Details](https://en-gb.wordpress.org/plugins/captcha-code-authentication/#description) * [Reviews](https://en-gb.wordpress.org/plugins/captcha-code-authentication/#reviews) * [Installation](https://en-gb.wordpress.org/plugins/captcha-code-authentication/#installation) * [Development](https://en-gb.wordpress.org/plugins/captcha-code-authentication/#developers) [Support](https://wordpress.org/support/plugin/captcha-code-authentication/) ## Description Adds GDPR compatible captcha code anti-spam protection to WordPress forms – comments form, registration form, lost password form, and login form. In order to post comments or register, users have to type in the code shown on the image. This prevents spam from automated bots & adds security. No external services (like Google ReCaptcha) are used. No API keys are needed, and no user-identifiable data is used so it’s GDPR compatible. #### Features 1. Captcha position – comments form, login form, registration form, or lost password form. 2. Letters type – capital letters, small letters, or captial & small letters. 3. Captcha type – alphanumeric, alphabets or numbers. 4. Translation enabled. ## Screenshots * [[ * Captcha settings * [[ * Captcha on login form * [[ * Captcha on reset password form * [[ * Captcha on comments form ## Installation 1. Download the plugin. 2. Upload to your blog (/wp-content/plugins/). 3. Activate it. 4. Click the ‘Captcha’ menu. 5. Fill in the options. 6. You’re done! ## FAQ ### How to disable this plugin? Just use standard Plugin overview page in WordPress admin section and deactivate it or rename plugin folder /wp-content/plugins/captcha-code-authentication over FTP access. ### Will it slow my site down? No, it won’t. It’s only loaded on the pages it protects. ### How can I report security bugs? You can report security bugs through the Patchstack Vulnerability Disclosure Program. The Patchstack team help validate, triage and handle any security vulnerabilities. [Report a security vulnerability.](https://patchstack.com/database/vdp/captcha-code-authentication) Uninstalling is as simple as deactivating and deleting the plugin. ## Reviews ![](https://secure.gravatar.com/avatar/e12993dd5066ea41f78ca3d23643bed899b1add37400a511db0956bfcb685f53? s=60&d=retro&r=g) ### 󠀁[invalid code](https://wordpress.org/support/topic/invalid-code-9/)󠁿 [cilycwmweb](https://profiles.wordpress.org/cilycwmweb/) 14 February 2026 seems to produce the same code nearly every time and fails. if I change from numeric code to alphanumeric code it still produces the same numeric code. and it still fails. ![](https://secure.gravatar.com/avatar/f081bc4c26dbb1a92f76ff2b2ba1ef17c15e559a4eac0131cf6163a5ad508799? s=60&d=retro&r=g) ### 󠀁[They doing spam](https://wordpress.org/support/topic/they-doing-spam/)󠁿 [Atikur Rahman Shohel](https://profiles.wordpress.org/atikurmsps/) 23 July 2025 1 reply I got surprised that, my fresh website sudden installed this plugin automatically. Even i never seen their name ever. They hide the plugin from WP Plugin list and uses as core plugin and uses option on WP Setting. Offering premium plan and doing huge spam. I recommend WP to remove their plugin for doing spam marketing and fraud install. ![](https://secure.gravatar.com/avatar/9bb0c51c5c50ffa96f1c2a64b77de8390e32779dc2b83b36331449c7c3b45c5a? s=60&d=retro&r=g) ### 󠀁[Not good](https://wordpress.org/support/topic/not-good-235/)󠁿 [Dipto Nath](https://profiles.wordpress.org/diptonath/) 15 January 2025 Waste of time, ![](https://secure.gravatar.com/avatar/fcc69842447994a42c2bddadfde1fd32abf273365ebbc036d17bc9b038dfaea6? s=60&d=retro&r=g) ### 󠀁[it slows down your site](https://wordpress.org/support/topic/it-slows-down-your-site/)󠁿 [vitaligs](https://profiles.wordpress.org/vitaligs/) 8 August 2024 A PHP session was created by a session_start() function call. This interferes with REST API and loopback requests. The session should be closed by session_write_close() before making any HTTP requests. on the file wpcaptcha.php you should fix line 40 to 44 with this if ( !session_id() ) { session_start( [ ‘read_and_close’ => true,]);} I had to find it my way out ![](https://secure.gravatar.com/avatar/810de7a45fff535680083ba99c967fb023d022eff84132d04e8bf3b1a13f8589? s=60&d=retro&r=g) ### 󠀁[working yey](https://wordpress.org/support/topic/working-yey/)󠁿 [galo](https://profiles.wordpress.org/galos26/) 1 January 2024 I hope it’s harder to get around ![](https://secure.gravatar.com/avatar/b23da03fbf7653b8d72a8b42e75891c964eb97e3fd59df50910b271f1bc5f4a6? s=60&d=retro&r=g) ### 󠀁[not work for Woocommrce!!!](https://wordpress.org/support/topic/not-work-for-woocommrce/)󠁿 [MAHDI KAZEMI](https://profiles.wordpress.org/mahdikazemi/) 24 February 2023 HelloThis plugin works for the post and page comments form but does not work for Woocommrce and the comment is sent without entering the security code.please check it. Thankful [ Read all 34 reviews ](https://wordpress.org/support/plugin/captcha-code-authentication/reviews/) ## Contributors and Developers “Captcha Code” is open source software. The following people have contributed to this plugin. Contributors * [ WebFactory ](https://profiles.wordpress.org/webfactory/) “Captcha Code” has been translated into 14 locales. Thank you to [the translators](https://translate.wordpress.org/projects/wp-plugins/captcha-code-authentication/contributors) for their contributions. [Translate “Captcha Code” into your language.](https://translate.wordpress.org/projects/wp-plugins/captcha-code-authentication) ### Interested in development? [Browse the code](https://plugins.trac.wordpress.org/browser/captcha-code-authentication/), check out the [SVN repository](https://plugins.svn.wordpress.org/captcha-code-authentication/), or subscribe to the [development log](https://plugins.trac.wordpress.org/log/captcha-code-authentication/) by [RSS](https://plugins.trac.wordpress.org/log/captcha-code-authentication/?limit=100&mode=stop_on_copy&format=rss). ## Change Log #### 3.3 * 2025/08/04 * minor code fixes #### 3.2 * 2024/06/30 * minor security fix #### 3.1 * 2024/03/13 * bug fix related to saving settings #### 3.0 * 2024/01/31 * security fix #### 2.9 * 2023/12/29 * complete rewrite #### 1.0 * 2012/07/17 * initial release ## Meta * Version **3.3** * Last updated **4 months ago** * Active installations **100,000+** * WordPress version ** 3.0 or higher ** * Tested up to **6.9.4** * PHP version ** 5.2 or higher ** * Languages * [Chinese (Taiwan)](https://tw.wordpress.org/plugins/captcha-code-authentication/), [Czech](https://cs.wordpress.org/plugins/captcha-code-authentication/), [Dutch](https://nl.wordpress.org/plugins/captcha-code-authentication/), [Dutch (Belgium)](https://nl-be.wordpress.org/plugins/captcha-code-authentication/), [English (Canada)](https://en-ca.wordpress.org/plugins/captcha-code-authentication/), [English (UK)](https://en-gb.wordpress.org/plugins/captcha-code-authentication/), [English (US)](https://wordpress.org/plugins/captcha-code-authentication/), [French (France)](https://fr.wordpress.org/plugins/captcha-code-authentication/), [German](https://de.wordpress.org/plugins/captcha-code-authentication/), [Persian](https://fa.wordpress.org/plugins/captcha-code-authentication/), [Polish](https://pl.wordpress.org/plugins/captcha-code-authentication/), [Russian](https://ru.wordpress.org/plugins/captcha-code-authentication/), [Spanish (Chile)](https://cl.wordpress.org/plugins/captcha-code-authentication/), [Spanish (Spain)](https://es.wordpress.org/plugins/captcha-code-authentication/) and [Swedish](https://sv.wordpress.org/plugins/captcha-code-authentication/). * [Translate into your language](https://translate.wordpress.org/projects/wp-plugins/captcha-code-authentication) * Tags * [captcha](https://en-gb.wordpress.org/plugins/tags/captcha/)[form captcha](https://en-gb.wordpress.org/plugins/tags/form-captcha/) [login captcha](https://en-gb.wordpress.org/plugins/tags/login-captcha/)[recaptcha](https://en-gb.wordpress.org/plugins/tags/recaptcha/) * [Advanced View](https://en-gb.wordpress.org/plugins/captcha-code-authentication/advanced/) ## Ratings 3.8 out of 5 stars. * [ 23 5-star reviews ](https://wordpress.org/support/plugin/captcha-code-authentication/reviews/?filter=5) * [ 1 4-star review ](https://wordpress.org/support/plugin/captcha-code-authentication/reviews/?filter=4) * [ 0 3-star reviews ](https://wordpress.org/support/plugin/captcha-code-authentication/reviews/?filter=3) * [ 1 2-star review ](https://wordpress.org/support/plugin/captcha-code-authentication/reviews/?filter=2) * [ 9 1-star reviews ](https://wordpress.org/support/plugin/captcha-code-authentication/reviews/?filter=1) [Your review](https://wordpress.org/support/plugin/captcha-code-authentication/reviews/#new-post) [See all reviews](https://wordpress.org/support/plugin/captcha-code-authentication/reviews/) ## Contributors * [ WebFactory ](https://profiles.wordpress.org/webfactory/) ## Support Got something to say? Need help? [View support forum](https://wordpress.org/support/plugin/captcha-code-authentication/)