CVE-2026-63235

Improper access control vulnerability

Published Jul 29, 2026 CVSS 3.1 · 3.7 Low EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Three Learning
Three Learning koollab Lms
Weaknesses CWE-284
Vendors & Products Three Learning
Three Learning koollab Lms
Metrics ssvc

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

Type Values Removed Values Added
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.
Title Improper access control vulnerability
References
Metrics cvssV3_1

{'score': 3.7, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
CSA
Published
Updated
Jul 29, 2026, 2:32 PM
Reserved
Jul 16, 2026, 2:33 AM
Status
Deferred
Published
Jul 29, 2026, 7:16 AM
Modified
Oct 23, 2026, 11:10 PM