CVE-2025-52563: Chamilo Lms

Medium severity, CVSS 6.1. EPSS: 0.2% chance of exploitation in the next 30 days.

Chamilo is a learning management system. Prior to version 1.11.30, there is a reflected cross-site scripting (XSS) vulnerability due to insufficient sanitization of the page parameter in the session/add_users_to_session.php endpoint. This issue has been patched in version 1.11.30.

Affected products

• Chamilo Chamilo Lms: before 1.11.30 (fixed in 1.11.30)

Published 2026-03-02. Last modified 2026-06-17.