An authentication bypass vulnerability in Koollab LMS allowed an unauthenticated
attacker to take over any account, including administrator accounts, by
supplying a valid user UUID without providing primary credentials via the 2FA
validation endpoint.

Project Subscriptions

Vendors Products
Three Learning Subscribe
Koollab Lms Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 29 Jul 2026 15:30:00 +0000

Type Values Removed Values Added
First Time appeared Three Learning
Three Learning koollab Lms
Weaknesses CWE-287
Vendors & Products Three Learning
Three Learning koollab Lms
Metrics ssvc

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


Wed, 29 Jul 2026 06:45:00 +0000

Type Values Removed Values Added
Description An authentication bypass vulnerability in Koollab LMS allowed an unauthenticated attacker to take over any account, including administrator accounts, by supplying a valid user UUID without providing primary credentials via the 2FA validation endpoint.
Title Authentication bypass vulnerability
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: CSA

Published:

Updated: 2026-07-29T14:28:37.043Z

Reserved: 2026-07-16T02:35:54.249Z

Link: CVE-2026-63238

cve-icon Vulnrichment

Updated: 2026-07-29T14:26:45.503Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-29T15:10:02Z

Weaknesses