NetCat 5.01 and earlier allows remote attackers to obtain the installation path via the redirect_url parameter to netshop/post.php.
http://www.securityfocus.com/bid/72854
http://seclists.org/fulldisclosure/2015/Mar/8
http://packetstormsecurity.com/files/130583/NetCat-CMS-5.01-3.12-Full-Path-Disclosure.html