Mathematical Captcha Applier
Apply a simple mathematical captcha to specific buttons by providing their CSS class or ID to prevent spamming.
Plugin info
Maintenance & Compatibility
Maintenance score
Maintained • Last updated 107 days ago
Is Mathematical Captcha Applier abandoned?
Likely maintained (last update 107 days ago).
Compatibility
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Description
Mathematical Captcha Applier is a lightweight WordPress plugin that lets you easily apply a simple math-based captcha to form submit buttons on your website by specifying their CSS selector. Just provide a specific button’s CSS selector, and the plugin will display a captcha prompt before the action is completed. This could help to prevent spam and unwanted bot activity.
Features:
– Add a mathematical captcha to form submit buttons ( or ) by specifying their CSS selector (ID or class).
– Attempts to protect forms from automated submissions.
– No external dependencies — lightweight and fast.
– Simple configuration via the WordPress dashboard.
– If JavaScript is disabled, this plugin will hide the selected buttons.
How It Works:
When a user clicks the protected button, a small popup will appear asking them to solve a basic math problem (e.g., 5 + 3 = ?). If answered correctly, the action will proceed.
If JavaScript is disabled in the browser, the plugin hides the selected submit button.
Installation
- Upload the plugin files to the
/wp-content/plugins/mathematical-captcha-applierdirectory, or install the plugin through the WordPress Plugins screen. - Activate the plugin through the Plugins screen in WordPress.
- Go to Settings > Mathematical Captcha Applier to configure the buttons you want to protect.
Frequently Asked Questions
Yes, as long as the submit button is either <input type="submit"> or <button type="submit"> and you specify its unique class or ID as the selector.
Yes, you can specify multiple selectors in the settings.
Yes, the captcha popup and validation rely on JavaScript.
No. This plugin is not designed to handle all types of spamming threats. It attempts to stop spamming attempts by using a CSS and JS based method.
No. Only specific selectors based on ID or class are allowed. Global selectors like input[type="submit"] and button[type="submit"] are blocked.
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Screenshots
Changelog
1.0
- Initial release