The wpForo Forum WordPress plugin before 3.1.3 does not restrict which profile fields a member may set when editing their own account, allowing users with a subscriber-level account to write administrator-controlled account-state and reputation fields on their own profile, including self-activating a pending or banned account and forging their forum reputation score.
https://wpscan.com/vulnerability/b90a74b5-1694-4afc-9232-95cf092e2c98/