View online: https://www.drupal.org/sa-contrib-2026-253 Project: Monster Menus [1] Project machine name: monster_menus Date: 2026-October-21 Security risk: *Critical* 16 ∕ 25 AC:Basic/A:User/CI:All/II:All/E:Theoretical/TD:Uncommon [2] Vulnerability: PHP object injection Affected versions: <9.5.6 CVE IDs: CVE-2026-114573 Description:  This module enables you to create one or more multisites with highly granular page permissions. The included RSS Page submodule allows you to create nodes which aggregate one or more RSS feeds. When the input of the node creation form is processed, it makes use of PHP's unserialize function. This introduces a PHP object injection vulnerability. This vulnerability is mitigated by the fact that the RSS Page submodule must be enabled and an attacker must have a role with the permission "RSS Feed: Create new content". Solution:  Install the latest version: * If you use the monster_menus module, upgrade to monster_menus 9.5.6 [3] Reported By:  * Drew Webber (mcdruid) [4] of the Drupal Security Team Fixed By:  * Dan Wilga (gribnif) [5] Coordinated By:  * Drew Webber (mcdruid) [6] of the Drupal Security Team ------------------------------------------------------------------------------ Contribution record [7] [1] https://www.drupal.org/project/monster_menus [2] https://www.drupal.org/drupal-security-team/security-risk-levels-defined [3] https://www.drupal.org/project/monster_menus/releases/9.5.6 [4] https://www.drupal.org/u/mcdruid [5] https://www.drupal.org/u/gribnif [6] https://www.drupal.org/u/mcdruid [7] https://new.drupal.org/contribution-record?source_link=https%3A//www.drupal....