VULNERABILITY INTELLIGENCE
CVE-2026-63233
CVSS score9.9 CRITICAL
EPSS probability0.53%
CISA KEVNot currently listed
Published2026-07-29
Last modified2026-10-23
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Description
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.
Weakness classification
- 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-89