The nsIScriptableUnescapeHTML.parseFragment method in the
ParanoidFragmentSink protection mechanism in Mozilla Firefox before
3.5.17 and 3.6.x before 3.6.14, Thunderbird before 3.1.8, and
SeaMonkey before 2.0.12 does not properly sanitize HTML in a chrome
document, which makes it easier for remote attackers to execute
in (1) the HREF attribute of an A element or (2) the ACTION attribute
of a FORM element.
Note:References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
BUGTRAQ:20100421 Security-Assessment.com WhitePaper/Addendum: Cross Context Scripting with Firefox & Exploiting Cross Context Scripting vulnerabilities in Firefox
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