Second security advisory issued for IE 7
Description:A weakness has been discovered in Internet Explorer, which can be exploited by malicious people to conduct phishing attacks.The problem is that it's possible to display a popup with a somewhat spoofed address bar where a number of special characters have been appended to the URL. This makes it possible to only display a part of the address bar, which may trick users into performing certain unintended actions.
Internet Explorer 7 Popup Address Bar Spoofing Weakness - Advisories - Secunia