Is this vulnerability remotely exploitable?

Yes. An attacker who can reach the vulnerable `savescores.php` endpoint and control the `test` parameter can attempt to exploit the path traversal over the network, subject to any authentication or access controls in front of the endpoint.

Does exploitation require authentication or special privileges?

In many LMS configurations, interacting with exercise functionality requires authentication. Whether guest or student accounts can reach the vulnerable code path depends on local configuration, but at minimum the attacker must hold a role that can trigger the score-saving logic.

What is the safest general fix pattern?

The most robust approach is to decouple user input from raw filesystem paths by using server-side mappings from IDs to paths, while also enforcing base-directory constraints and path canonicalization before any file operation occurs. File deletion should only ever operate on paths derived from trusted, validated sources.

Severity:

HIGH RISK

(8.3)

Path Traversal Leading to Arbitrary File Deletion (CWE-22) in Chamilo LMS savescores.php

CVE-2026-31939

Published:

Apr 10, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

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CWE-94

HIGH RISK

HIGH

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Remote Code Execution by authenticated users via malicious file upload

May 10, 2026

CWE-94

HIGH RISK

HIGH

(8.8)

Code Injection (CWE-94) via Module Parameters in Evolution CMS

Remote Code Execution by Authenticated Users

May 10, 2026

Vulnerability Type

Category:

Path Traversal / Arbitrary File Access

CWE:

CWE-22;CWE-73

Impact:

Arbitrary File Deletion on Server

Severity:

HIGH RISK

(8.3)

CVSS Version:

3.1

Vulnerability Type

Category:

Path Traversal / Arbitrary File Access

CWE:

CWE-22;CWE-73

Impact:

Arbitrary File Deletion on Server

Severity:

HIGH RISK

(8.3)

CVSS Version:

3.1

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Path Traversal Leading to Arbitrary File Deletion (CWE-22) in Chamilo LMS savescores.php

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(8.8)

PHP Code Injection via File Upload (CWE-94) in Aero CMS Admin Post Creation

HIGH RISK

HIGH

(8.8)

Code Injection (CWE-94) via Module Parameters in Evolution CMS

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

Ship clean & secure code faster

Ship clean & secure code faster

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