Microsoft Office for Mac 2011 uses world-writable permissions for the "Applications/Microsoft Office 2011/" directory and certain other directories, which allows local users to gain privileges by placing a Trojan horse executable file in one of these directories, aka "Office for Mac Improper Folder Permissions Vulnerability."
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15602
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-051