Mozilla Firefox before 1.5.0.10 and 2.x before 2.0.0.2, and SeaMonkey before 1.0.8 ignores trailing invalid HTML characters in attribute names, which allows remote attackers to bypass content filters that use regular expressions.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10164
https://issues.rpath.com/browse/RPL-1103
https://issues.rpath.com/browse/RPL-1081
http://www.vupen.com/english/advisories/2008/0083
http://www.vupen.com/english/advisories/2007/0718
http://www.ubuntu.com/usn/usn-428-1
http://www.securitytracker.com/id?1017702
http://www.securityfocus.com/bid/22694
http://www.securityfocus.com/archive/1/461809/100/0/threaded
http://www.securityfocus.com/archive/1/461336/100/0/threaded
http://www.redhat.com/support/errata/RHSA-2007-0108.html
http://www.redhat.com/support/errata/RHSA-2007-0097.html
http://www.redhat.com/support/errata/RHSA-2007-0079.html
http://www.redhat.com/support/errata/RHSA-2007-0078.html
http://www.novell.com/linux/security/advisories/2007_22_mozilla.html
http://www.mozilla.org/security/announce/2007/mfsa2007-02.html
http://www.mandriva.com/security/advisories?name=MDKSA-2007:050
http://www.gentoo.org/security/en/glsa/glsa-200703-08.xml
http://www.debian.org/security/2007/dsa-1336
http://slackware.com/security/viewer.php?l=slackware-security&y=2007&m=slackware-security.374851
http://slackware.com/security/viewer.php?l=slackware-security&y=2007&m=slackware-security.338131
http://security.gentoo.org/glsa/glsa-200703-04.xml
http://secunia.com/advisories/25588
http://secunia.com/advisories/24650
http://secunia.com/advisories/24457
http://secunia.com/advisories/24455
http://secunia.com/advisories/24437
http://secunia.com/advisories/24395
http://secunia.com/advisories/24393
http://secunia.com/advisories/24384
http://secunia.com/advisories/24343
http://secunia.com/advisories/24342
http://secunia.com/advisories/24333
http://secunia.com/advisories/24328
http://secunia.com/advisories/24320
http://secunia.com/advisories/24293
http://secunia.com/advisories/24290
http://secunia.com/advisories/24287
http://secunia.com/advisories/24238
http://secunia.com/advisories/24205
http://rhn.redhat.com/errata/RHSA-2007-0077.html
http://lists.suse.com/archive/suse-security-announce/2007-Mar/0001.html
http://ha.ckers.org/xss.html#XSS_Non_alpha_non_digit2
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c00771742