External users in Filr can share files via Email Contributors form

External users in Filr who are granted access to a file by a Filr user are allowed access to the file in the 'Shared with Me' area. On the file entry page, the external user can select the option to "Send E-Mail to Contributors" which bypasses the re-share rights granted to him. Using this form, the external user is allowed to trigger emails to additional users.

A fix for this issue is available in the Filr 2.0 - Hot Patch 4 for Filr 2.0 and Filr 3.1 Update for Filr 3.0 via the Novell Patch Finder. With the fix in place, the option to "Send E-Mail to Contributors" will no longer be available to external users.