The Two Factor Authentication WordPress plugin before 1.17.0, All-In-One Security (AIOS) ...

The Two Factor Authentication WordPress plugin before 1.17.0, All-In-One Security (AIOS) WordPress plugin before 5.5.0 do not bind the account whose two-factor code is verified to the account being authenticated, allowing an attacker who knows a victim's password and holds their own two-factor-enabled account to satisfy the victim's second-factor check with their own code and obtain the victim's session.