plugin

Kcaptcha Vulnerabilities

1 known security issue reported for the Kcaptcha WordPress plugin. Most recent disclosed Apr 21, 2026.

1 medium

Running Kcaptcha on your site? Check whether your installed version is affected.

Kcaptcha <= 1.0.1 - Cross-Site Request Forgery to Settings Update

medium

The Kcaptcha plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to and including 1.0.1. This is due to missing nonce validation in the plugin's settings page handler (admin/setting.php). The settings form does not include a wp_nonce_field() and the form processing code does not call wp_...

CVSS:: 4.3
Affected:: up to 1.0.1
Fix:: No patched version reported
Disclosed:: Apr 21, 2026

CVE-2026-4121 on NVD →

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