CVE-2026-63232

A SQL injection and unsafe deserialisation vulnerability in Koollab LMS allowed an authenticated attacker to inject through the assessment reinforcement endpoint, control data passed to unserialize(), write a webshell to a publicly accessible location, and execute arbitrary code on the server.

Score

CVSS 3.1 9.9 Critical

Status

Deferred - 5f57b9bf-260d-4433-bf07-b6a79e9bb7d4

Published

2026-07-29

Last modified

2026-10-23

Weaknesses

CWE-89

Affected products

• Koollab Lms (Three Learning)

References

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