PipraPay pp-token anti-CSRF pp-adapter.php hash_hmac hard-coded credentials

A weakness has been identified in PipraPay 3.0.0. Affected by this vulnerability is the function hash_hmac of the file pp-content/pp-include/pp-adapter.php of the component pp-token anti-CSRF Handler. Executing a manipulation can lead to hard-coded credentials. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.