Home/CVE/Chamilo is a learning management system. Versions prior to 1.11.34 have a Stored XSS through insecure file uploads in `S
CVE

CVE-2025-55208

Chamilo is a learning management system. Versions prior to 1.11.34 have a Stored XSS through insecure file uploads in `S

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.

CRITICAL · CVSS 9 EPSS 0.00066
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
▤

Affected Products & Versions

1
chamilo lms< 1.11.34
▣

Scoring & Timeline

9
CRITICAL · CVSS v3.1 · security-advisories@github.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD05 Mar 2026 · 09:16 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-2vq2-826h-6hp6Vendor Advisory
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