CVE-2007-1563
The FTP protocol implementation in Opera 9.10 allows remote attackers to allows remote servers to force the client to connect to other servers, perform a proxied port scan, or obtain sensitive information by specifying an alternate server address in an FTP PASV response.
Date published : 2007-03-21
http://www.securityfocus.com/bid/23089
http://bindshell.net/papers/ftppasv/ftp-client-pasv-manipulation.pdf