CVE-2025-55208CWE-79

Chamilo LMS has Stored Cross Site Scripting on Social Networks Uploaded Files

Critical · published March 5, 2026

CVSS v3.1
9.1
EPSS
0%
Percentile
23.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
9.1 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00320 · 23.7th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-03-05T20:58Z
EPSS history
Timeline
  • 05 MAR 20:58Z
    Chamilo LMS has Stored Cross Site Scripting on Social Networks Uploaded Files
    cvelistv5