CVE-2026-63235

Severity CVSS v4.0:

Pending analysis

Type:

CWE-284 Improper Access Control

Publication date:

29/07/2026

Last modified:

30/07/2026

Description

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

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS v3.1 Severity and Metrics:

Base Score: 3.70 LOW
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): Low

Base Score 3.x

3.70

Severity 3.x

LOW

References to Advisories, Solutions, and Tools

https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2026-094/