code-projects Restaurant Reservation System filter.php sql injection

A vulnerability classified as critical has been found in code-projects Restaurant Reservation System 1.0. Affected is an unknown function of the file /filter.php. The manipulation of the argument from/to leads to sql injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The initial researcher advisory only mentions the parameter "from" to be affected. But it must be assumed that parameter "to" is affected as well.