CVE-2026-63233

critical · 9.9

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.

9.9

CVSS

0.3%

EPSS (exploit prob.)

22nd

EPSS percentile

2026-07-29

Published

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Weaknesses

CWE-89

References

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

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-63233