CVE-2026-9731

Description

The Wp Js Detect plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.0.9. This is due to missing or incorrect nonce validation on the plugin_settings function. This makes it possible for unauthenticated attackers to update the plugin's notification text and CSS settings (wp_non_js_notification_text and wp_non_js_notification_css), injecting arbitrary content that is echoed unescaped on the frontend via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

References

• https://plugins.trac.wordpress.org/browser/wp-js-detect/trunk/wp-js-detect.php#L190
• https://plugins.trac.wordpress.org/browser/wp-js-detect/trunk/wp-js-detect.php#L192
• https://plugins.trac.wordpress.org/browser/wp-js-detect/trunk/wp-js-detect.php#L193
• https://plugins.trac.wordpress.org/browser/wp-js-detect/trunk/wp-js-detect.php#L250
• https://www.wordfence.com/threat-intel/vulnerabilities/id/afca7b14-f3bb-4612-b81c-bde120b380ba?source=cve