The Cost Calculator Builder plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'embed-create-page' and 'embed-insert-pages' functions in all versions up to, and including, 3.2.12. This makes it possible for authenticated attackers, with Subscriber-level access and above, to create arbitrary posts and append arbitrary content to existing posts.
The product does not perform an authorization check when an actor attempts to access a resource or perform an action.