A vulnerability was found in SourceCodester Library Management System 1.0. It has been rated as critical. Affected by this issue is some unknown functionality of the file /librarian/bookdetails.php. The manipulation of the argument id with the input ‘ AND (SELECT 9198 FROM (SELECT(SLEEP(5)))iqZA)– PbtB leads to sql injection. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.