A lightweight math CAPTCHA for WordPress login, Contact Form 7, and WooCommerce forms.
| Author: | Ridhwan Ahsan (profile at wordpress.org) |
| WordPress version required: | 5.5 |
| WordPress version tested: | 6.7.5 |
| Plugin version: | 1.1.2 |
| Added to WordPress repository: | 12-03-2026 |
| Last updated: | 10-05-2026 |
| Rating, %: | 0 |
| Rated by: | 0 |
| Plugin URI: | |
| Total downloads: | 469 |
 Click to start download |
|
RMGCaptcha Math Guard adds a GDPR-friendly, math-based CAPTCHA to protect WordPress login, WooCommerce, and Contact Form 7 forms from spam, fake registrations, and brute-force attacks. No external services, no tracking, and fully WordPress.org compliant.
Features:
- WordPress login protection (captcha on wp-login.php)
- Contact Form 7 integration via [pmcMathcaptcha] / [pmcMathcaptcha*]
- WooCommerce login and registration protection
- Lightweight spam protection without Google reCAPTCHA or third-party tracking
- Configurable difficulty and operations (Addition/Subtraction/Multiplication/Random)
- Hide captcha for logged-in users
- Custom error message support
- Optional rate limiting and honeypot
- Failed login log + logged user list (admin pages)
- Translation-ready
FAQ
ChangeLog