The Workreap plugin for WordPress is vulnerable to privilege escalation via account takeover in all versions up to, and including, 3.2.5. This is due to the plugin not properly validating a users identity prior to (1) performing a social auto-login or (2) updating their profile details (e.g. password). This makes it possible for unauthenticated attackers to (1) login as an arbitrary user if their email address is known or (2) change an arbitrary users password, including administrators, and leverage that to gain access to their account. NOTE: This vulnerability was partially fixed in version 3.2.5.
A product requires authentication, but the product has an alternate path or channel that does not require authentication.