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Vulnerability record · CVE-2026-63234 · published 29 July 2026

CVE-2026-63234: SQL injection vulnerability

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

9.9 CVSS 3.1 Critical EPSS 0.53% · top 57.5% CWE-89 · SQL injection Deferred
9.9CVSS 3.1 base score
0.53%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
1References
30 Jul 2026Last modified by NVD

Description

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

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

References

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

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Source: NIST National Vulnerability Database (record CVE-2026-63234), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.