The GamiPress WordPress plugin before 8.0.6 does not perform a capability check or ownership...

The GamiPress WordPress plugin before 8.0.6 does not perform a capability check or ownership verification on one of its authenticated AJAX actions, allowing any authenticated user, such as a Subscriber, to read arbitrary entries from its activity log, including other users' points balances and earned achievements and the usernames of the administrators who performed manual point award and revoke actions.