The Ultimate WordPress Auction Plugin plugin for WordPress is vulnerable to unauthorized access to functionality in all versions up to, and including, 4.2.9. This makes it possible for authenticated attackers, with Contributor-level access and above, to delete arbitrary auctions, posts as well as pages and allows them to execute other actions related to auction handling.
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.