The Social Streams plugin for WordPress is vulnerable to privilege escalation in all versions up to, and including, 1.0.1. This is due to the plugin not properly validating a user's identity prior to updating their user meta information in the update_user_meta() function. This makes it possible for authenticated attackers, with Subscriber-level access and above, to change their user type to that of an administrator.
The elevated privilege level required to perform operations such as chroot() should be dropped immediately after the operation is performed.