VulnerabilityAnalyzed

CVE-2026-31940

This vulnerability is fixed in 1.11.38 and 2.0.0-RC.3.

HIGH 8.8EPSS 0.24%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.24%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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 3.1: 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS: 0.24% probability · 15th percentile
CISA KEV: Not listed
Weakness: CWE-384
Affected: chamilo/chamilo lms
Source: security-advisories@github.com

References

https://github.com/chamilo/chamilo-lms/commit/ce0192c62e48c9d9474d915c541b3274844afbf9Patch
https://github.com/chamilo/chamilo-lms/commit/e337b7cc74a0276a0b4f91f9282204d20cac1869Patch
https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-4gp7-cfjh-77gvVendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.