Date: 
Wednesday, Mar 19th, 2025
Advisory ID: 
BACKDROP-SA-CORE-2025-003
Security risk: 
Moderately Critical
Vulnerability: 
Access bypass
Versions affected: 
  • Backdrop Core 1.30.x versions prior to 1.30.2
  • Backdrop Core 1.29.x versions prior to 1.29.4

Backdrop versions 1.28 and prior do not receive security coverage.

Description: 

Backdrop CMS includes bulk operations for content that allow people to modify multiple nodes at once from the Manage Content page (admin/content). These bulk operations can also be added to other listings using Views.

A bug in the core Actions system allows some people to use bulk actions to modify some values that they would not have permission to modify when editing individual nodes.

This vulnerability is mitigated by the fact that an attacker must have permission to access the /admin/content page, or other custom views used to modify nodes.

In particular, the following bulk actions now require either the "Administer content" permission, or the "Bypass content access control" permission.

  • Make content sticky
  • Make content unsticky
  • Promote content
  • Remove promotion
  • Publish content
  • Unpublish content
  • Delete content

 

Solution: 

Upgrade your site to the most recent version of Backdrop core. Download available on the Backdrop CMS 1.30.2 release page. See the update instructions, if needed.

Reported By: 
Fixed By: 

Security email list

Backdrop maintains a security mailing list. Whenever a security release comes out, an email will be sent to everyone subscribed to that list, announcing the new release. Please follow the steps below to join the Security email list.

  1. Log in to backdropcms.org
  2. Edit your profile
  3. Switch to the "Subscriptions" tab
  4. Check the box labeled "Security updates"
  5. Save the form