Web servers are vunerable from a wide range of issues.
The nature of the Web enables us to connect our property to the world. With a connection to the world, a world of individuals are available to do things that you may not wish them to do to your property. CGI stands for Common Gateway Interface. You use the gateway to expand your Web site from a mere online brochure to a more intelligent interface with your intended audiences. If your CGI software is poorly specified, designed, or implemented, a hacker can easily do things to your Web server that could cost you money, time, and surely lots of frustration.