CVE-2026-31940
HIGH EPSS 15.0%
Published Apr 10, 20262mo ago · Modified Jun 17, 20261w ago
8.8 CVSS 3.1
Published Apr 10, 2026 2mo ago
Last Modified Jun 17, 2026 1w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality High
Integrity High
Availability High
Threat Intelligence
EPSS Exploit Probability
15.0% percentile
Exploit & Patch Status
No Known Exploit
Patch Available
Weaknesses 1
CWE-384
Affected Products 11
| Vendor | Product | Version | Range |
|---|---|---|---|
| chamilo | chamilo_lms | * | <1.11.38 |
| chamilo | chamilo_lms | 2.0.0 | any |
| chamilo | chamilo_lms | 2.0.0 | any |
| chamilo | chamilo_lms | 2.0.0 | any |
| chamilo | chamilo_lms | 2.0.0 | any |
| chamilo | chamilo_lms | 2.0.0 | any |
| chamilo | chamilo_lms | 2.0.0 | any |
| chamilo | chamilo_lms | 2.0.0 | any |
| chamilo | chamilo_lms | 2.0.0 | any |
| chamilo | chamilo_lms | 2.0.0 | any |
| chamilo | chamilo_lms | 2.0.0 | any |
References 3
- github.com https://github.com/chamilo/chamilo-lms/commit/ce0192c62e48c9d9474d915c541b3274844afbf9
- github.com https://github.com/chamilo/chamilo-lms/commit/e337b7cc74a0276a0b4f91f9282204d20cac1869
- github.com https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-4gp7-cfjh-77gv
Remediation
- github.com https://github.com/chamilo/chamilo-lms/commit/ce0192c62e48c9d9474d915c541b3274844afbf9
- github.com https://github.com/chamilo/chamilo-lms/commit/e337b7cc74a0276a0b4f91f9282204d20cac1869