The XSS Filter in Microsoft Internet Explorer 8 does not properly perform neutering for the SCRIPT tag, which allows remote attackers to conduct cross-site scripting (XSS) attacks against web sites that have no inherent XSS vulnerabilities, a different issue than CVE-2009-4074.

The XSS Filter in Microsoft Internet Explorer 8 allows remote attackers to leverage the "response-changing mechanism" to conduct cross-site scripting (XSS) attacks against web sites that have no inherent XSS vulnerabilities, related to the details of output encoding and improper modification of an HTML attribute, aka "XSS Filter Script Handling Vulnerability."