kdelibs3 -- konqueror FTP command injection vulnerability

Albert Puigsech Galicia reports that Konqueror (more
specifically kio_ftp) and Microsoft Internet Explorer are
vulnerable to a FTP command injection vulnerability which
can be exploited by tricking an user into clicking a
specially crafted FTP URI.
It is also reported by Ian Gulliver and Emanuele Balla that
this vulnerability can be used to tricking a client into
sending out emails without user interaction.