Home Clean Services Management System login.php sql injection

A vulnerability classified as critical has been found in Home Clean Services Management System 1.0. This affects an unknown part of admin/login.php. The manipulation of the argument username with the input admin%'//AND//(SELECT//5383//FROM//(SELECT(SLEEP(5)))JPeh)//AND/**/'frfq%'='frfq leads to sql injection. It is possible to initiate the attack remotely but it requires authentication. Exploit details have been disclosed to the public.