A security flaw has been discovered in Campcodes/SourceCodester Courier Management System 1.0. Affected by this issue is the function Signup of the file /ajax.php. Performing manipulation of the argument lastname results in sql injection. It is possible to initiate the attack remotely. The exploit has been released to the public and may be exploited.
The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.