CVE-2025-55289

Chamilo is a learning management system. Prior to version 1.11.34, there is a stored XSS vulnerability in Chamilo LMS (Verison 1.11.32) allows an attacker to inject arbitrary JavaScript into the platform’s social network and internal messaging features. When viewed by an authenticated user (including administrators), the payload executes in their browser within the LMS context. This enables full account takeover via session hijacking, unauthorized actions with the victim’s privileges, exfiltration of sensitive data, and potential self-propagation to other users. This issue has been patched in version 1.11.34.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/chamilo/chamilo-lms/releases/tag/v1.11.34	Product Release Notes
https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-cchj-3qmf-82j5	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:chamilo:chamilo_lms:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-03-06 04:16

Updated : 2026-03-09 17:30

NVD link : CVE-2025-55289

Mitre link : CVE-2025-55289

CVE.ORG link : CVE-2025-55289

JSON object : View

Products Affected

chamilo

chamilo_lms

CWE

CWE-79

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

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