The Wordable plugin for WordPress is vulnerable to authentication bypass in versions up to, and including, 3.1.1. This is due to the use of a user supplied hashing algorithm passed to the hash_hmac() function and the use of a loose comparison on the hash which allows an attacker to trick the function into thinking it has a valid hash. This makes it possible for unauthenticated attackers to gain administrator privileges.
The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.