CVE-2026-3569

Description

The Liaison Site Prober plugin for WordPress is vulnerable to Information Exposure in all versions up to and including 1.2.1 via the /wp-json/site-prober/v1/logs REST API endpoint. The permissions_read() permission callback unconditionally returns true (via __return_true()) instead of checking for appropriate capabilities. This makes it possible for unauthenticated attackers to retrieve sensitive audit log data including IP addresses, user IDs, usernames, login/logout events, failed login attempts, and detailed activity descriptions.

References

• https://plugins.trac.wordpress.org/browser/liaison-site-prober/tags/1.2.1/includes/class-liaison-rest-controller.php#L19
• https://plugins.trac.wordpress.org/browser/liaison-site-prober/tags/1.2.1/includes/class-liaison-rest-controller.php#L50
• https://plugins.trac.wordpress.org/browser/liaison-site-prober/tags/1.2.1/includes/class-liaison-rest-controller.php#L90
• https://plugins.trac.wordpress.org/browser/liaison-site-prober/trunk/includes/class-liaison-rest-controller.php#L19
• https://plugins.trac.wordpress.org/browser/liaison-site-prober/trunk/includes/class-liaison-rest-controller.php#L50