The Web3 WordPress plugin before 3.0.0 is vulnerable to an authentication bypass due to incorrect authentication checking in the login flow in functions 'handle_auth_request' and 'hadle_login_request'. This makes it possible for non authenticated attackers to log in as any existing user on the site, such as an administrator, if they have access to the username.
https://wpscan.com/vulnerability/7f30ab20-805b-422c-a9a5-21d39c570ee4/