CVE-2025-52563CWE-79CWE-80CWE-87

Chamilo: Reflected XSS via page parameter

Medium · published March 2, 2026

CVSS v4.0
5.1
EPSS
0%
Percentile
5.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
5.1 · MEDIUM
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
EPSS
0.00164 · 5.3th percentile
Weaknesses
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'); CWE-80 · Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS); CWE-87 · Improper Neutralization of Alternate XSS Syntax
Published
2026-03-02T15:50Z
EPSS history
Timeline
  • 02 MAR 15:50Z
    Chamilo: Reflected XSS via page parameter
    cvelistv5