CVE-2026-31939 Path Traversal (Arbitrary File Delete) in Chamilo LMS

High 8.3 Published 10 Apr 2026 Updated 13 Apr 2026

An attacker can delete arbitrary files on the server via path traversal in Chamilo LMS, potentially causing data loss or service disruption.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-31939?

CVE-2026-31939 is a high-severity path traversal vulnerability in Chamilo Chamilo Lms, published on 10 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

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.

Weakness: CWE-73, CWE-22

Which versions are affected by CVE-2026-31939?

It affects 1 product.

Products include Chamilo Chamilo Lms.

How do I fix CVE-2026-31939?

No fix has been published for CVE-2026-31939 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2026-31939 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-31939 exists.

All Chamilo Chamilo Lms vulnerabilities

Sources

Also known as GHSA-8q8c-v75x-q2hx.