This module enables sites to block access for the administrative user account (user 1) or users with the administrator role. The module does not sufficiently e...

A blocked administrative user may still be able to sign in through certain alternative authentication methods because the module does not enforce its restrictions across all supported methods. An attacker must have valid credentials for a user with the administrator role and use a less commonly used authentication mechanism.

Look for drupal/stop_admin and its version in composer.lock. The advisory lists 1.6.0 as fixed but gives no affected version range. Check whether the module blocks user 1 or users with the administrator role, and whether your site supports alternative authentication methods. The advisory does not identify which methods are affected.

The vulnerability is mitigated by the requirement for valid credentials for a user with the administrator role and use of a less commonly used authentication mechanism.

This module enables sites to block access for the administrative user account (user 1) or users with the administrator role.

The module does not sufficiently enforce these access restrictions across all supported authentication mechanisms. As a result, a blocked administrative user may still be able to authenticate through certain alternative authentication methods.

This vulnerability is mitigated by the fact that an attacker must possess valid credentials for a user with the administrator role, and must authenticate using a less commonly used authentication mechanism.