CVE-2026-63237

Published Jul 29, 2026

Last updated 3 months ago

CVSS medium 4.8
lms

Overview

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.
Source
5f57b9bf-260d-4433-bf07-b6a79e9bb7d4
NVD status
Deferred

Risk scores

CVSS 3.1

Type
Secondary
Base score
4.8
Impact score
2.5
Exploitability score
2.2
Vector string
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Severity
MEDIUM

Weaknesses

134c704f-9b21-4f2e-91b3-4a467353bcc0
CWE-347

Social media

Hype score
Not currently trending

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References

Sources include official advisories and independent security research.