source: http://www.securityfocus.com/bid/10468/info

cPanel is prone to a vulnerability that can allow a remote authenticated administrator to delete customer account DNS information for customers that are not administered by that administrator. This attack can allow an attacker to cause a denial of service condition against vulnerable Web sites. 

http://www.example.com:2086/scripts/killacct?domain=(domain)&user=(user)&submit-domain=Terminate