Directory traversal vulnerability in the ajaxinit function in wpmarketplace/libs/cart.php in the WP Marketplace plugin before 2.4.1 for WordPress allows remote authenticated users to download arbitrary files via a .. (dot dot) in the file parameter.

The ajaxinit function in wpmarketplace/libs/cart.php in the WP Marketplace plugin 2.4.0 for WordPress allows remote authenticated users to create arbitrary users and gain admin privileges via a request to wpmp_pp_ajax_call with an execution target of wp_insert_user.