What is the CVSS score of CVE-2025-59540?

CVE-2025-59540 has a CVSS 3.1 base score of 5.4 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.0%.

Which versions of Chamilo Lms are affected by CVE-2025-59540?

Organizations using Chamilo should be aware of moderate risk from CVE-2025-59540, a cross-site scripting vulnerability rated CVSS 5.4.

How to fix or mitigate CVE-2025-59540?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

Chamilo Lms CVE-2025-59540

MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2026-03-06 security-advisories@github.com

XSS Chamilo Lms

5.4

CVSS 3.1 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

5.4 MEDIUM

AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 22:06 vuln.today

CVE Published

Mar 06, 2026 - 04:16 nvd

MEDIUM 5.4

DescriptionGitHub Advisory

Chamilo is a learning management system. Prior to version 1.11.34, a stored XSS vulnerability exists in Chamilo LMS that allows a staff account to execute arbitrary JavaScript in the browser of higher-privileged admin users. The issue arises because feedback input in the exercise history page is not properly encoded before rendering, allowing malicious scripts to persist in the database and execute on view. This issue has been patched in version 1.11.34.

AnalysisAI

Technical ContextAI

Classified as CWE-79 (Cross-site Scripting (XSS)). Affects Chamilo Lms. Chamilo is a learning management system. Prior to version 1.11.34, a stored XSS vulnerability exists in Chamilo LMS that allows a staff account to execute arbitrary JavaScript in the browser of higher-privileged admin users. The issue arises because feedback input in the exercise history page is not properly encoded before rendering, allowing malicious scripts to persist in the database and execute on view. This issue has been patched in version 1.11.34.

RemediationAI

Fixed in version 1.11.34.. Implement output encoding and Content Security Policy headers. Restrict network access to the affected service where possible.