The MStore API WordPress plugin before 4.21.0 does not correctly verify the cryptographic signature of the token used to authenticate its phone-based login, allowing unauthenticated attackers who know a registered user's phone number to forge a token and take over that user's account, including administrator accounts.
https://wpscan.com/vulnerability/adf8ffe0-39a2-4d26-af11-1ac807800735/