Firefox 1.0.3 allows remote attackers to execute arbitrary Javascript in other domains by using an IFRAME and causing the browser to navigate to a previous javascript: URL, which can lead to arbitrary code execution when combined with CVE-2005-1477.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10045
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A100002
https://exchange.xforce.ibmcloud.com/vulnerabilities/20443
https://bugzilla.mozilla.org/show_bug.cgi?id=293302
https://bugzilla.mozilla.org/show_bug.cgi?id=292691
http://www.vupen.com/english/advisories/2005/0493
http://www.securityfocus.com/bid/15495
http://www.securityfocus.com/bid/13544
http://www.redhat.com/support/errata/RHSA-2005-435.html
http://www.redhat.com/support/errata/RHSA-2005-434.html
http://www.mozilla.org/security/announce/mfsa2005-42.html
http://www.kb.cert.org/vuls/id/534710
http://securitytracker.com/id?1013913
http://secunia.com/advisories/15292
http://marc.info/?l=full-disclosure&m=111556301530553&w=2