Is CVE-2026-63237 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-63237?

CVE-2026-63237 has a CVSS v3 severity of MEDIUM (4.8).

Back

CVE-2026-63237

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.