A vulnerability was found in SourceCodester Apartment Visitor Management System 1.0. It has been classified as critical. This affects an unknown part of the file index.php. The manipulation of the argument username with the input ' AND (SELECT 4955 FROM (SELECT(SLEEP(5)))RSzF) AND 'htiy'='htiy leads to sql injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-205665 was assigned to this vulnerability.