# CVE-2025-52563

## Summary

- **CVE ID:** CVE-2025-52563
- **Severity:** MEDIUM
- **CVSS Score:** 5.1 (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)
- **CWE:** CWE-79, CWE-80, CWE-87
- **Published:** Mar 2, 2026
- **Last Modified:** Mar 13, 2026

## Description

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.

## Affected Products

- chamilo — chamilo-lms (< 1.11.30)

## References

- [CNA](https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-h3m8-53j3-xjx8)
- [CNA](https://github.com/chamilo/chamilo-lms/releases/tag/v1.11.30)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.15%
- **EPSS Percentile:** 4.9

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._