URL Shortener Plugin For WordPress <= 3.0.7 - Missing Authorization to Authenticated (Subscriber+) Link Manipulation

The URL Shortener Plugin For WordPress plugin for WordPress is vulnerable to unauthorized access to functionality provided by the API due to a missing capability check on the verifyRequest function in all versions up to, and including, 3.0.7. This makes it possible for authenticated attackers, with Subscriber-level access and above, to modify links.