Session Fixation in Chamilo LMS - CVE-2026-31940
Published: May 5, 2026
Vulnerability identifier: #VU129655
CSH Severity: High
CVSS v4: 7.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-31940
CWE-ID: CWE-384
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to the session fixation issue in the aicc_hacp.php file. A remote attacker can gain elevated privileges on the target system.
Affected software
Chamilo LMS
How to mitigate CVE-2026-31940
Install updates from vendor's website.
Chamilo LMS - addressed in versions 1.11.38, 2.0.0 RC.3