Apple QuickTime 7.1.3 Player and Plug-In allows remote attackers to execute arbitrary JavaScript code and possibly conduct other attacks via a QuickTime Media Link (QTL) file with an embed XML element and a qtnext parameter that identifies resources outside of the original domain. NOTE: as of 20070912, this issue has been demonstrated by using instances of Components.interfaces.nsILocalFile and Components.interfaces.nsIProcess to execute arbitrary local files within Firefox and possibly Internet Explorer.
http://www.vupen.com/english/advisories/2007/3155
http://www.securitytracker.com/id?1018687
http://www.securityfocus.com/archive/1/479179/100/0/threaded
http://www.securityfocus.com/archive/1/453756/100/0/threaded
http://www.securityfocus.com/archive/1/446750/100/0/threaded
http://www.kb.cert.org/vuls/id/751808
http://www.gnucitizen.org/blog/myspace-quicktime-worm-follow-up
http://www.gnucitizen.org/blog/0day-quicktime-pwns-firefox
http://securityreason.com/securityalert/1631
http://secunia.com/advisories/27414
http://lists.apple.com/archives/Security-announce/2007/Mar/msg00000.html