CRITICAL 9.9 NVD
CVE-2026-63233
A SQL injection and unsafe deserialisation vulnerability in Koollab LMS allowed an authenticated attacker to inject through the assessment overall answer endpoi
A SQL injection and unsafe deserialisation
vulnerability in Koollab LMS allowed an authenticated attacker to inject through the assessment
overall answer endpoint, control data passed to unserialize(), write a webshell
to a publicly accessible location, and execute arbitrary code on the server.
References
This critical severity vulnerability with a CVSS score of 9.9 was published on 2026-07-29 via NVD.
Risk Timeline
CVE Disclosed2026-07-29 · 5 days ago
Remediation Resources
Official Advisory
www.csa.gov.sg/alerts-and-advisories/alerts/al-2026-094/
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