The Travel Booking WordPress Theme theme for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the '__stPartnerCreateServiceRental', 'st_delete_order_item', '_st_partner_approve_booking', 'save_order_item', and '__userDenyEachInfo' functions in all versions up to, and including, 3.1.6. This makes it possible for authenticated attackers, with Subscriber-level access and above, to modify posts, delete posts and pages, approve arbitrary orders, insert orders with arbitrary prices, and deny user information.
The product does not perform an authorization check when an actor attempts to access a resource or perform an action.