Medium 6.4Published Mar 5, 2026

CVE-2025-59540Chamilo: Stored Cross-Site Scripting (XSS) in Chamilo LMS Exercise Feedback

Updated under an hour ago (Oct 27, 2026, 6:10 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for chamilo-lms

Exploited in the last 30 days

Chamilo is a learning management system. Prior to version 1.11.34, a stored XSS vulnerability exists in Chamilo LMS that allows a staff account to execute arbitrary JavaScript in the browser of higher-privileged admin users. The issue arises because feedback input in the exercise history page is not properly encoded before rendering, allowing malicious scripts to persist in the database and execute on view. This issue has been patched in version 1.11.34.

CVSS: 6.4 MEDIUM (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H
Weakness (CWE): CWE-80, CWE-79
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Mar 6, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

chamilo chamilo-lms chamilo:lms (from the name)	before 1.11.34	CNA record
chamilo chamilo_lms chamilo:chamilo_lms	before 1.11.34	NVD

References

References

https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-59h4-34mx-m67m	x-refsource-confirm, vendor-advisory
https://github.com/chamilo/chamilo-lms/releases/tag/v1.11.34	x-refsource-misc, product, release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.