Kimberley Massey

An incorrect authorization issue allows forceful browsing. The module fails to sufficiently validate transaction results when using the Payflow Link payment gateway, which enables a malicious user to mark transactions as completed without providing payment.

A flaw exists in the OpenID Connect / OAuth client module that could allow for authentication bypass. Specifically, if a user successfully authenticates with their Identity Provider but is denied access to Drupal due to custom code or a server error, their session remains active at the Identity Provider. This can potentially lead to unauthorized access, particularly in shared computing environments, where a user who initially failed to authenticate may gain access through an alternate path.