CVE-2006-2787
EvalInSandbox in Mozilla Firefox and Thunderbird before 1.5.0.4 allows remote attackers to gain privileges via javascript that calls the valueOf method on objects that were created outside of the sandbox.
Date published : 2006-06-02
http://www.securityfocus.com/bid/18228
http://www.securityfocus.com/archive/1/435795/100/0/threaded