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.

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Advisories

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Fixes

Solution

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Workaround

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History

Mon, 20 Jul 2026 22:45:00 +0000

Type Values Removed Values Added
First Time appeared Chamilo
Chamilo chamilo Lms
Vendors & Products Chamilo
Chamilo chamilo Lms

Mon, 20 Jul 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 20 Jul 2026 18:00:00 +0000

Type Values Removed Values Added
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.
Title Chamilo stored XSS via user registration leads to admin account takeover
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 9.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-07-20T18:54:20.667Z

Reserved: 2026-04-07T20:32:03.010Z

Link: CVE-2026-39878

cve-icon Vulnrichment

Updated: 2026-07-20T18:54:16.711Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-20T22:30:18Z

Weaknesses