Hosting Controller 6.1 Hotfix 1.9 and earlier allows remote attackers to register arbitrary users via a direct request to addsubsite.asp with the loginname and password parameters set.
Hosting Controller 6.1 Hotfix 1.4, and possibly other versions, allows remote attackers to view arbitrary directories by specifying the target pathname in the FilePath parameter to (1) Statsbrowse.asp or (2) Generalbrowse.asp.