Jimmy M. writes "A new vulnerability has been announced in Internet Explorer, also affecting XP SP2, which can very easily be exploited by a malicious web site to completely spoof the address bar. The vulnerability is very similar to another vulnerability disclosed just about a year ago called the '%00' vulnerability, which also was widely exploited by phishers. A demonstration is also available."

The vulnerability is caused due to an error in the DHTML Edit ActiveX control when handling the "execScript()" function in certain situations. This can be exploited to execute arbitrary script code in a user's browser session in context of an arbitrary site.