Cross-site scripting (XSS) vulnerability in Microsoft Internet Explorer 9 through 11 and Microsoft Edge allows remote attackers to inject arbitrary web script or HTML via unspecified vectors, aka "Microsoft Browser Information Disclosure Vulnerability."
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-145
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-144