View online: https://www.drupal.org/sa-contrib-2025-124

Project: Disable Login Page [1] Date: 2025-December-03 Security risk: *Critical* 15 ∕ 25 AC:Complex/A:None/CI:Some/II:Some/E:Theoretical/TD:All [2] Vulnerability: Access bypass

Affected versions: <1.1.3 CVE IDs: CVE-2025-13986 Description:  This module enables you to disable the standard Drupal login form (/user/login) so site owners can prevent interactive logins via the UI.

The module does not sufficiently block authentication when the REST/HTTP login route is used. An attacker (or legitimate user) with valid credentials can authenticate using the REST login endpoint (/user/login?_format=json) or other HTTP-based authentication routes, effectively bypassing the module’s protection of the UI login page.

This vulnerability is mitigated by the fact that an attacker must already possess valid account credentials.

Solution:  Install the latest version:

* If you use the Disable Login Page module, upgrade to Disable Login Page 1.1.3 [3]

Reported By:  * Pierre Rudloff (prudloff) [4] provisional member of the Drupal Security Team

Fixed By:  * Anoop John (anoopjohn) [5] * Jijo Joseph (jijojoseph_zyxware) [6] * Pierre Rudloff (prudloff) [7] provisional member of the Drupal Security Team

Coordinated By:  * cilefen (cilefen) [8] of the Drupal Security Team * Greg Knaddison (greggles) [9] of the Drupal Security Team * Drew Webber (mcdruid) [10] of the Drupal Security Team * Juraj Nemec (poker10) [11] of the Drupal Security Team * Jess (xjm) [12] of the Drupal Security Team

------------------------------------------------------------------------------ Contribution record [13]

[1] https://www.drupal.org/project/disable_login [2] https://www.drupal.org/security-team/risk-levels [3] https://www.drupal.org/project/disable_login/releases/1.1.3 [4] https://www.drupal.org/u/prudloff [5] https://www.drupal.org/u/anoopjohn [6] https://www.drupal.org/u/jijojoseph_zyxware [7] https://www.drupal.org/u/prudloff [8] https://www.drupal.org/u/cilefen [9] https://www.drupal.org/u/greggles [10] https://www.drupal.org/u/mcdruid [11] https://www.drupal.org/u/poker10 [12] https://www.drupal.org/u/xjm [13] https://new.drupal.org/contribution-record?source_link=https%3A//www.drupal....