projectworlds Online Hotel Booking booknow.php sql injection

A vulnerability was found in projectworlds Online Hotel Booking 1.0. It has been rated as critical. This issue affects some unknown processing of the file /booknow.php?roomname=Duplex. The manipulation of the argument checkin leads to sql injection. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. Other parameters might be affected as well.