CVE-2025-55208
Critical
Description
Chamilo is a learning management system. Versions prior to 1.11.34 have a Stored XSS through insecure file uploads in `Social Networks`. Through it, a low-privilege user can execute arbitrary code in the admin user inbox, allowing takeover of the admin account. Version 1.11.34 fixes the issue.
SeverityCritical
CVSS9.0
Exploit probability—
Product
Chamilo Lms
PublishedMar 5, 2026
First seenMar 5, 2026
Weakness typeCWE-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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