Guests able to edit articles

Hi,

I've gone through all the permissions associated with a particular wiki forum and the following settings are selected for the Unregistered usergroup.

Ie:
Usergroups -> Forum Permissions -> [My particular Wiki forum] -> Unregistered / Not Logged In

Can Post Threads -> No
Can Reply to Own Threads -> No
Can Reply to Others threads -> No
Can Edit Own Posts -> No

Yet I'm able to edit the article as a guest.

Is there something I'm missing?

EDIT: Ok I think I found it under Usergroup Manager -> Unregistered / Not Logged In -> Edit Usergroup -> VaultWiki Permissions -> Can edit wii articles

Yes, if you have custom Forum Permissions for your wiki forum, Can Edit Wiki Articles appears there as well.