Vulnerability · Published Apr 10, 2026 · Assigned by GitHub_M
CVE-2026-31940Session Fixation in Chamilo LMS
High 7.5
In plain English
A high-severity session fixation in chamilo-lms from chamilo. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 15% of all known vulnerabilities).
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.2%top 84.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, in main/lp/aicc_hacp.php, user-controlled request parameters are directly used to set the PHP session ID before loading global bootstrap. This leads to session fixation. This vulnerability is fixed in 1.11.38 and 2.0.0-RC.3.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| chamilo | chamilo-lms | < 1.11.38>= 2.0.0-alpha.1, < 2.0.0-RC.3 |
Weakness: CWE-384 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
References
- https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-4gp7-cfjh-77gv x_refsource_CONFIRM
- https://github.com/chamilo/chamilo-lms/commit/ce0192c62e48c9d9474d915c541b3274844afbf9 x_refsource_MISC
- https://github.com/chamilo/chamilo-lms/commit/e337b7cc74a0276a0b4f91f9282204d20cac1869 x_refsource_MISC