CVE-2026-63237

MediumCVSS 4.8/10Last modified Oct 23, 2026

Description

A TOTP two-factor authentication bypass vulnerability in Koollab LMS allowed an attacker to supply a client-controlled seed to generate a matching one-time password and bypass the second authentication factor, potentially enabling unauthorised access to administrator accounts.

Metrics

CVSS 3.1 4.8/10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Weakness enumeration

CWE-347

Affected software

No affected versions have been published.

Timeline

Published: Jul 29, 2026
Last modified: Oct 23, 2026
NVD status: Deferred

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