A security vulnerability has been detected in yungifez Skuul School Management System up to 2.6.3. Affected by this vulnerability is the function GraduationController::resetGraduation of the file app/Http/Controllers/GraduationController.php of the component Delete Handler. Such manipulation of the argument student leads to missing authorization. The attack can be executed remotely. The exploit has been disclosed publicly and may be used. Upgrading to version 3.0.0 addresses this issue. The name of the patch is b42f2c80a8e5e01ca6e607bbd97f137ede368ac9. The affected component should be upgraded.