The toStaticHTML function in Microsoft Internet Explorer 8, and the SafeHTML function in Microsoft Windows SharePoint Services 3.0 SP2, SharePoint Foundation 2010, Office SharePoint Server 2007 SP2, Groove Server 2010, and Office Web Apps, allows remote attackers to bypass the cross-site scripting (XSS) protection mechanism and conduct XSS attacks via a crafted use of the Cascading Style Sheets (CSS) @import rule, aka "HTML Sanitization Vulnerability," a different vulnerability than CVE-2010-1257.

Cross-site scripting (XSS) vulnerability in the toStaticHTML API, as used in Microsoft Office InfoPath 2003 SP3, 2007 SP1, and 2007 SP2; Office SharePoint Server 2007 SP1 and SP2; SharePoint Services 3.0 SP1 and SP2; and Internet Explorer 8 allows remote attackers to inject arbitrary web script or HTML via vectors related to sanitization.