Is CVE-2026-63235 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-63235?

CVE-2026-63235 has a CVSS v3 severity of LOW (3.7).

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CVE-2026-63235

Description

An improper access control vulnerability in Koollab LMS allowed an unauthenticated attacker to forcibly terminate the session of any user given their email address via the login kickout endpoint, resulting in a denial of service.