CVE-2026-3261: Itsourcecode School Management System

Critical severity, CVSS 9.8. EPSS: 0.6% chance of exploitation in the next 30 days.

A flaw has been found in itsourcecode School Management System 1.0. This impacts an unknown function of the file /settings/index.php of the component Setting Handler. This manipulation of the argument ID causes sql injection. The attack may be initiated remotely. The exploit has been published and may be used.

Affected products

Published 2026-02-26. Last modified 2026-06-17.