A vulnerability has been discovered in Netscape, which can be exploited by malicious people to conduct phishing attacks.

The vulnerability is caused due to the Passcard Manager not properly checking the URL before filling in saved user credentials. This may be exploited to steal user credentials via malicious forms in the same domain.

Successful exploitation requires that the "Automatically Fill Passcard" or "Automatically Log In" option is set in the preferences.

The vulnerability is confirmed in version 8.1.2. Other versions may also be affected.

Solution
Disable the "Automatically Fill Passcard" or "Automatically Log In" option in the preferences of Passcard Manager and always check the URL before invoking it.
Original Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=360493

Other references
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