A vulnerability classified as critical has been found in SourceCodester Prison Management System 1.0. Affected is an unknown function of the file /admin/?page=inmates/view_inmate of the component Inmate Handler. The manipulation of the argument id with the input 1%27%20and%201=2%20union%20select%201,user(),3,4,5,6,7,8,9,0,database(),2,3,4,5,6,7,8,9,0,1,2,3,4--+ leads to sql injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.