What the vulnerability does
01Description
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.
Explanation of Vulnerability in Simple Terms
02Summary
Liaison Site Prober versions 1.2.1 and earlier lack proper authorization checks, allowing unauthenticated attackers to read sensitive information. The vulnerability requires only network access and no user interaction. Site administrators should update to a version newer than 1.2.1 to prevent unauthorized data disclosure.
What an attacker can do
03Attacker Capabilities
Read sensitive information without authentication.
Potential impact on your site
04Site Impact
Unauthorized users can access confidential data exposed by the Site Prober application.
Conditions required to exploit
05Prerequisites
Network access only; no authentication or user interaction required.
Key dates
06Disclosure timeline
April 24, 2026
CVE published
April 24, 2026
Record updated
