Reflected Cross-Site Scripting Vulnerability in Chamilo Learning Management System
CVE-2025-52563

5.1MEDIUM

Key Information:

Vendor

Chamilo

Status
Chamilo-lms
Vendor
CVE Published:
2 March 2026

What is CVE-2025-52563?

The Chamilo Learning Management System has a reflected cross-site scripting (XSS) vulnerability that arises from inadequate sanitization of the 'page' parameter in the session/add_users_to_session.php endpoint. Attackers could exploit this flaw to inject malicious scripts into sessions, posing risks to user data and system integrity. Users are advised to upgrade to version 1.11.30, where this issue has been successfully addressed.

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Deploy the Patch

Affected Version(s)

chamilo-lms < 1.11.30

References

https://github.com/chamilo/chamilo-lms/security/advisorie...
x_refsource_CONFIRM
https://github.com/chamilo/chamilo-lms/releases/tag/v1.11.30
x_refsource_MISC

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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