bug #4720 :  Now, in order to avoid the edition of a file in the server filesystem, in the case of the website, the path of the file to edit is provided as relative to the web sites repository. Therefore, the wysiwyg editor asks for the path of this repository in order to load the file.
bug #4720 :  Check there is no attempt to go up the path of the wysiwyg file within WysiwygController. The message for forbiden access to a file is now in the general multilang instead in the website multilang