Simple Author Box <= 2.51 - Authenticated (Contributor+) Insecure Direct Object Reference to Arbitrary User Sensitive Information Exposure

The Simple Author Box plugin for WordPress is vulnerable to Insecure Direct Object Reference in versions up to, and including, 2.51. This is due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with contributor-level permissions and above, to expose sensitive user information.