A Page Permission is a permitted action on a particular target page or set of pages: view, edit, modify, comment, rename, upload, delete.
For details, see http://doc.jspwiki.org/2.4/wiki/PagePermissions.
For even more details, go to http://doc.jspwiki.org/2.4/wiki/Security.
From JSPWiki v2.6 on, the rename permission no longer implies modify (or upload) (see NewIn2.6).
Add new attachment
Only authorized users are allowed to upload new attachments.