PHPGurukul Pre-School Enrollment System add-class.php sql injection

A vulnerability, which was classified as critical, was found in PHPGurukul Pre-School Enrollment System 1.0. Affected is an unknown function of the file /admin/add-class.php. The manipulation of the argument classname leads to sql injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.