CVE-2025-52563

5.1 mediumEPSS 0.2%

Medium (5.1) in chamilo chamilo lms. EPSS 0.2% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

5.1 medium

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 3.1

6.1 medium

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 8% of CVEs (scores of 2026-10-31)
CWEs: CWE-79, CWE-80, CWE-87
Published: 2026-03-02
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

chamilo:chamilo_lms

References

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

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