The WPFunnels WordPress plugin before 3.13.0 does not verify that the product requested through a checkout order bump is the product that bump's discount was configured for, allowing unauthenticated users to obtain any purchasable product at a discount intended for a different one, with the reduced price carried through to the total of the order they place.

The WPFunnels WordPress plugin before 3.13.0 does not restrict access to the log files it writes to a predictable location under the public uploads directory, allowing unauthenticated users to download customer order details and opt-in form submissions when logging is enabled.