Multiple untrusted search path vulnerabilities in the (1) full installer and (2) stub installer in Mozilla Firefox before 23.0 on Windows allow local users to gain privileges via a Trojan horse DLL in the default downloads directory. NOTE: this issue exists because of an incomplete fix for CVE-2012-4206.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18210
https://bugzilla.mozilla.org/show_bug.cgi?id=883165
http://www.mozilla.org/security/announce/2013/mfsa2013-74.html