CVE-2025-55208

9.0 criticalEPSS 0.4%

Critical (9.0) in chamilo chamilo lms. EPSS 0.4% chance of exploitation in the next 30 days.

Chamilo is a learning management system. Versions prior to 1.11.34 have a Stored XSS through insecure file uploads in `Social Networks`. Through it, a low-privilege user can execute arbitrary code in the admin user inbox, allowing takeover of the admin account. Version 1.11.34 fixes the issue.

Severity

CVSS 3.1

9.0 critical

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

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 29% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2026-03-05
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

chamilo:chamilo_lms

References

https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-2vq2-826h-6hp6

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