This module enables site builders to set up fine-grained permissions for allowing users to edit and delete other users.
The module doesnβt sufficiently validate access permissions, enabling users who supposedly have limited permissions to grant themselves more permissions.
This vulnerability is mitigated by the fact that an attacker must have a role with the permission βadminister usersβ. While this is usually a permission only granted to trusted users the Administer Users by Role module intends to limit the permission so that users cannot elevate their own permissions, but it fails to do so in certain scenarios.
Drupal core is not affected. If you do not use the contributed Administer Users by Role module,
there is nothing you need to do.
Also see the Administer Users by Role project page.
not applicable.