Thread:Extension talk:CategoryTree/Permissions issue using version c7333ea on mediawiki 1.23/reply (2)

ajax dispatcher checks ( !User::isEveryoneAllowed( 'read' ) && !$wgUser->isAllowed( 'read' ) )

and throws an error if this is not the case - this means the TitleReadWhitelist is not checked, as no reference to the title is given.

So, if the user does not have global read access, they can't use categorytree.

hacked the core code to be (bad fix) ( !User::isEveryoneAllowed( 'read' ) && !$wgUser->isAllowed( 'read' ) && !$this->func_name == 'efCategoryTreeAjaxWrapper')