Purva_Shende

An authentication bypass exists because the module does not sufficiently check access on a configuration route or verify if the identity provider has confirmed the returned email address. This allows an attacker to log in as any existing user if their email address is known. To exploit this, the attacker must possess an account with a configured identity provider and be able to modify at least one attribute returned by that provider, such as a username.

An authentication bypass exists in the REST & JSON API Authentication for Drupal module. The module fails to sufficiently validate authentication requirements for all API requests, allowing an attacker to bypass the intended authentication layer.