The Noo JobMonster theme for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 4.8.1. This is due to the check_login() function not properly verifying a user's identity prior to successfully authenticating them This makes it possible for unauthenticated attackers to bypass standard authentication and access administrative user accounts. Please note social login needs to be enabled in order for a site to be impacted by this vulnerability.