When you are working with authorizations in EPiServer CMS, you see them in two dimensions. Each individual/group can have access rights to edit content on one or more pages. This can be carried out from two different views in EPiServer, View mode and Edit mode. Special settings are required for an individual/group to have access rights to Edit mode. All visitors normally have access to View mode (the Everyone group). If that group has the access rights to create information in the structure, anyone will be able to create pages in that place. This is used, for example, in public discussion forums..
You specify which groups are to have access to the different modes in EPiServer in the file web.config. The file can be found in the root of the website. The group Administrators and WebAdmins have access rights to Admin mode by default. Administrators, WebAdmins and WebEditors have access rights to Edit mode. All groups normally have access to View mode.