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.