Is CVE-2026-31940 actively exploited?

CVE-2026-31940 has no public evidence of in-the-wild exploitation as of 2026-04-17.

What is the CVSS score for CVE-2026-31940?

CVE-2026-31940 has a CVSS score of 7.5 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.

How do I patch CVE-2026-31940?

Patch guidance is available from chamilo security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-31940.

Fix CVE-2026-31940 - HIGH chamilo chamilo lms

Q: Which products are affected by CVE-2026-31940?

11 products: chamilo chamilo lms, chamilo chamilo lms, chamilo chamilo lms, chamilo chamilo lms, chamilo chamilo lms, and 6 more.

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 Metrics

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: high
Privileges: none
User Action: required
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-384

Metadata

Primary Vendor: CHAMILO
Published: 4/10/2026
Last Modified: 4/17/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

chamilo : chamilo_lmschamilo : chamilo_lmschamilo : chamilo_lmschamilo : chamilo_lmschamilo : chamilo_lmschamilo : chamilo_lmschamilo : chamilo_lmschamilo : chamilo_lmschamilo : chamilo_lmschamilo : chamilo_lmschamilo : chamilo_lms

Remediation Guidance

Executive Summary

View on NIST NVD