CVE-2025-59540CWE-79CWE-80

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

Medium · published March 6, 2026

CVSS v4.0
6.4
EPSS
0%
Percentile
7.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
6.4 · MEDIUM
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
EPSS
0.00184 · 7.5th percentile
Weaknesses
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'); CWE-80 · Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
Published
2026-03-06T03:27Z
EPSS history
Timeline
  • 06 MAR 03:27Z
    Chamilo: Stored Cross-Site Scripting (XSS) in Chamilo LMS Exercise Feedback
    cvelistv5