The privileged "chrome" UI code in Firefox before 1.0.3 and Mozilla Suite before 1.7.7 allows remote attackers to gain privileges by overriding certain properties or methods of DOM nodes, as demonstrated using multiple attacks involving the eval function or the Script object.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11291
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A100017
https://bugzilla.mozilla.org/show_bug.cgi?id=289961
https://bugzilla.mozilla.org/show_bug.cgi?id=289083
https://bugzilla.mozilla.org/show_bug.cgi?id=289074
http://www.securityfocus.com/bid/15495
http://www.securityfocus.com/bid/13233
http://www.redhat.com/support/errata/RHSA-2005-601.html
http://www.redhat.com/support/errata/RHSA-2005-386.html
http://www.redhat.com/support/errata/RHSA-2005-384.html
http://www.redhat.com/support/errata/RHSA-2005-383.html
http://www.novell.com/linux/security/advisories/2006_04_25.html
http://www.mozilla.org/security/announce/mfsa2005-41.html
http://www.gentoo.org/security/en/glsa/glsa-200504-18.xml
http://secunia.com/advisories/19823