CVE-2025-55208

CRITICAL

Chamilo LMS < 1.11.34 - Stored Cross-Site Scripting via Social Networks File Upload

Title source: llm
STIX 2.1

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.

References (1)

Core 1
Core References

Scores

CVSS v3 9.0
EPSS 0.0031
EPSS Percentile 22.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-79
Status published
Products (1)
chamilo/chamilo_lms < 1.11.34
Published Mar 05, 2026
Tracked Since Mar 06, 2026