Backstage – Customizer Demo Access, CVE-2026-9842
- CVE, Research URL
- Application
- Published on
- Jul 08, 2026
- Research Description
- The Backstage - Customizer Demo Access plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 1.4.2. This is due to the plugin assigning the `manage_options` capability to the `backstage_customizer_user` demo role, which is more permissive than necessary for Customizer-only demo access. This makes it possible for unauthenticated attackers to navigate beyond the Customizer and update arbitrary WordPress options such as `default_role`, leading to privilege escalation.
- Affected versions
-
max 1.4.2.
- Status
-
vulnerable
| Previous vulnerability researches |
|---|
| JSON API User (CVE-2026-9626) , Jul 04, 2026 |
| JSON API User (CVE-2024-6624) , Jul 12, 2024 |