static/ajax.php in PHPFox 3.7.3, 3.7.4, and 3.7.5 allows remote authenticated users to bypass intended "Only Me" restrictions and comment on a private publication via a request with a modified val[item_id] parameter for the publication.
Category : Permissions, Privileges, and Access Controls Weaknesses in this category are related to the management of permissions, privileges, and other security features that are used to perform access control.