CVE-2026-31939

Path Traversal (Arbitrary File Delete) in Chamilo LMS

8.3 High

Chamilo LMS is a learning management system. Prior to 1.11.38, there is a path traversal in main/exercise/savescores.php leading to arbitrary file feletion. User input from $_REQUEST['test'] is concatenated directly into filesystem path without canonicalization or traversal checks. This vulnerability is fixed in 1.11.38.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: Low
Integrity: High
Availability: High

Exploit likelihood

0.35%Up 0.3 points since Apr 11, 2026

What each source reports

CVE List Score used 8.3

Path Traversal (Arbitrary File Delete) in Chamilo LMS

Record: CVE-2026-31939
CVSS 3.1: 8.3 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H
Weakness: CWE-22, CWE-73
Updated: 2026-11-02

EUVDEUVD-2026-21521 8.3

Record: EUVD-2026-21521
CVSS 3.1: 8.3 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H
Updated: 2026-11-02

NVD 8.3

Record: CVE-2026-31939
CVSS 3.1: 8.3 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H
Weakness: CWE-22, CWE-73
Updated: 2026-11-02

OSV 8.3

Path Traversal (Arbitrary File Delete) in Chamilo LMS

Record: CVE-2026-31939
CVSS 3.1: 8.3 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H
Weakness: CWE-22, CWE-73
Updated: 2026-11-02

Affected products

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-31939 is a high vulnerability (CVSS 8.3) in Chamilo Lms, published April 10, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.35%, the 28th percentile. No source names a fixed version.