SourceCodester Employee Payslip Generator with Sending Mail New User Creation sql injection

A vulnerability was found in SourceCodester Employee Payslip Generator with Sending Mail 1.2.0 and classified as critical. This issue affects some unknown processing of the file classes/Users.php?f=save of the component New User Creation. The manipulation of the argument username leads to sql injection. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-222863.