A vulnerability was found in AT Software Solutions ATSVD up to 3.4.1. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the file /login.aspx of the component Login Endpoint. The manipulation of the argument txtUsuario leads to sql injection. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 3.4.2 is able to address this issue. It is recommended to upgrade the affected component.