Microsoft Internet Explorer 6 through 10 allows local users to bypass the elevation policy check in the (1) Protected Mode or (2) Enhanced Protected Mode protection mechanism, and consequently gain privileges, by leveraging the ability to execute sandboxed code.
https://exchange.xforce.ibmcloud.com/vulnerabilities/85762
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-055