CVE-2026-3569: Liaison Site Prober

Medium severity, CVSS 5.3. EPSS: 0.5% chance of exploitation in the next 30 days.

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.

Affected products

• Liaison Liaison Site Prober: up to and including 1.2.1

Published 2026-04-24. Last modified 2026-06-17.