What’s Vulnerable › Vulnerabilities

CVE-2026-63235: Improper access control vulnerability

• Severity: low (CVSS 3.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-29 · updated 2026-10-23
• Weakness: CWE-284

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.

Affected products

• Three Learning Koollab LMS: 5.3.2

References

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

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