Chamilo LMS Version 1.11.26 is vulnerable to Incorrect Access Control. A non-authenticated attacker can request the number of messages and the number of online users via "/main/inc/ajax/message.ajax.php?a=get_count_message" AND "/main/inc/ajax/online.ajax.php?a=get_users_online."
https://github.com/chamilo/chamilo-lms/commit/bef68ffe0552cd25b0ef760e582e1188f0f6bf4b
https://github.com/bahadoumi/Vulnerability-Research/tree/main/CVE-2024-30619