CVE-2025-52563 PUBLISHED

Chamilo: Reflected XSS via page parameter

Assigner: GitHub_M
Reserved: 18.06.2025 Published: 02.03.2026 Updated: 02.03.2026

Chamilo is a learning management system. Prior to version 1.11.30, there is a reflected cross-site scripting (XSS) vulnerability due to insufficient sanitization of the page parameter in the session/add_users_to_session.php endpoint. This issue has been patched in version 1.11.30.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
CVSS Score: 5.1

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	Low	Integrity	None
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	None
User Interaction	Active

CVSS 4.0

Product Status

Vendor	chamilo
Product	chamilo-lms
Versions	Version < 1.11.30 is affected

References

Problem Types

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') CWE
CWE-80: Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) CWE
CWE-87: Improper Neutralization of Alternate XSS Syntax CWE