CVE-2026-31940

HIGH EPSS 15.0%
Published Apr 10, 20262mo ago · Modified Jun 17, 20261w ago
8.8 CVSS 3.1
High
Find Similar
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
8.8
Exploitability
2.8
Impact
5.9
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

VendorProductVersionRange
chamilochamilo_lms* <1.11.38
chamilochamilo_lms2.0.0any
chamilochamilo_lms2.0.0any
chamilochamilo_lms2.0.0any
chamilochamilo_lms2.0.0any
chamilochamilo_lms2.0.0any
chamilochamilo_lms2.0.0any
chamilochamilo_lms2.0.0any
chamilochamilo_lms2.0.0any
chamilochamilo_lms2.0.0any
chamilochamilo_lms2.0.0any

References 3

  • github.com https://github.com/chamilo/chamilo-lms/commit/ce0192c62e48c9d9474d915c541b3274844afbf9
    Patch
  • github.com https://github.com/chamilo/chamilo-lms/commit/e337b7cc74a0276a0b4f91f9282204d20cac1869
    Patch
  • github.com https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-4gp7-cfjh-77gv
    Vendor Advisory

Remediation

  • github.com https://github.com/chamilo/chamilo-lms/commit/ce0192c62e48c9d9474d915c541b3274844afbf9
    Patch
  • github.com https://github.com/chamilo/chamilo-lms/commit/e337b7cc74a0276a0b4f91f9282204d20cac1869
    Patch