CVE-2025-59540
Medium
Description
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.
SeverityMedium
CVSS5.4
Exploit probability—
Product
Chamilo Lms
PublishedMar 6, 2026
First seenMar 6, 2026
Weakness typeCWE-80CWE-80CWE-79Cross-site scripting (XSS)
How to fix
Update
- chamilo chamilo_lms1.11.34 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| chamilo chamilo_lms | v < 1.11.34 | 1.11.34 |
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