Multiple cross-site scripting (XSS) vulnerabilities in the Photo Gallery plugin before 1.2.11 for WordPress allow remote authenticated users to inject arbitrary web script or HTML via the (1) sort_by (2) sort_order (3) items_view (4) dir (5) clipboard_task (6) clipboard_files (7) clipboard_src or (8) clipboard_dest parameters in an addImages action to wp-admin/admin-ajax.php.