As of now, Microsoft has not issued any fix/patch for this vulnerabilities but there is a workaround available if you want to safeguard your computer.  You have to set the Internet and Local intranet security zone settings in the Internet Explorer settings to “High”.  This will then disable both XMLDOM ActiveX Controls and Active Scripting in your Internet Explorer and the scripts cant be executed.

Microsoft Windows 8 1 and earlier versions vulnerable to XMLDOM XML Injection Vulnerability in Internet Explorer 6 to 11   TechWorm - 53