CVE-2026-39878

CriticalCVSS 9.3/10Last modified Oct 24, 2026

Description

Chamilo LMS versions 1.11.38 and earlier contain a stored cross-site scripting vulnerability in the user registration form that allows any unauthenticated attacker to execute arbitrary JavaScript in an administrator's browser session, leading to full platform admin account takeover. This has been patched in 1.11.40.

Metrics

CVSS 3.1 9.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Jul 20, 2026
Last modified
Oct 24, 2026
NVD status
Deferred

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CVE-2026-39878: Critical severity, CVSS 9.3 | Vulnix