CVE-2025-59540 MEDIUM

CVE-2025-59540: Chamilo: Stored Cross-Site Scripting (XSS) in Chamilo LMS Exercise Feedback

Vendor Chamilo
Product chamilo-lms
Weakness CWE-80 · XSS · basic
Published March 6, 2026
Last update March 6, 2026
View on NVD All CVEs

CVSS base score

6.4/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction —
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

March 6, 2026 CVE published
March 6, 2026 Record updated