gwee, or Generic Web Exploitation Engine, is a small program written in C designed to exploit input validation vulnerabilities in web scripts, such as Perl CGIs, PHP, etc. gwee is much like an exploit, except more general-purpose. It features several reverse connecting shellcodes, 4 methods of injection, and a built-in HTTP/HTTPS client and server. gwee is distributed under the MIT License. The Perl and Python shellcodes were written by Sabu.
You can download it from the following link: https://packetstormsecurity.com/files/download/33294/gwee-1.21.tar.gz
Source: https://packetstormsecurity.com/files/33294/gwee-Generic-Web-Exploitation-Engine-v1.21.html