Mozilla Firefox and Thunderbird 1.x before 1.5 and 1.0.x before 1.0.8, Mozilla Suite before 1.7.13, and SeaMonkey before 1.0 returns the Object class prototype instead of the global window object when (1) .valueOf.call or (2) .valueOf.apply are called without any arguments, which allows remote attackers to conduct cross-site scripting (XSS) attacks.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9604
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1955
https://exchange.xforce.ibmcloud.com/vulnerabilities/25820
http://www.vupen.com/english/advisories/2006/3391
http://www.vupen.com/english/advisories/2006/1356
http://www.securityfocus.com/bid/17516
http://www.securityfocus.com/archive/1/438730/100/0/threaded
http://www.securityfocus.com/archive/1/436338/100/0/threaded
http://www.securityfocus.com/archive/1/436296/100/0/threaded
http://www.redhat.com/support/errata/RHSA-2006-0330.html
http://www.redhat.com/support/errata/RHSA-2006-0329.html
http://www.redhat.com/support/errata/RHSA-2006-0328.html
http://www.redhat.com/archives/fedora-announce-list/2006-April/msg00154.html
http://www.redhat.com/archives/fedora-announce-list/2006-April/msg00153.html
http://www.novell.com/linux/security/advisories/2006_04_25.html
http://www.mozilla.org/security/announce/2006/mfsa2006-19.html
http://www.mandriva.com/security/advisories?name=MDKSA-2006:078
http://www.mandriva.com/security/advisories?name=MDKSA-2006:076
http://www.mandriva.com/security/advisories?name=MDKSA-2006:075
http://www.gentoo.org/security/en/glsa/glsa-200605-09.xml
http://www.gentoo.org/security/en/glsa/glsa-200604-18.xml
http://www.gentoo.org/security/en/glsa/glsa-200604-12.xml
http://www.debian.org/security/2006/dsa-1051
http://www.debian.org/security/2006/dsa-1046
http://www.debian.org/security/2006/dsa-1044
http://support.avaya.com/elmodocs2/security/ASA-2006-205.htm
http://sunsolve.sun.com/search/document.do?assetkey=1-26-228526-1
http://sunsolve.sun.com/search/document.do?assetkey=1-26-102550-1
http://secunia.com/advisories/21622
http://secunia.com/advisories/21033
http://secunia.com/advisories/20051
http://secunia.com/advisories/19950
http://secunia.com/advisories/19941
http://secunia.com/advisories/19902
http://secunia.com/advisories/19863
http://secunia.com/advisories/19862
http://secunia.com/advisories/19852
http://secunia.com/advisories/19823
http://secunia.com/advisories/19821
http://secunia.com/advisories/19811
http://secunia.com/advisories/19794
http://secunia.com/advisories/19780
http://secunia.com/advisories/19759
http://secunia.com/advisories/19746
http://secunia.com/advisories/19729
http://secunia.com/advisories/19721
http://secunia.com/advisories/19714
http://secunia.com/advisories/19696
http://secunia.com/advisories/19631
http://lists.suse.com/archive/suse-security-announce/2006-Apr/0003.html