CVE-2026-9842
Last modified
CVE-2026-9842 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 0.26% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| pixelgrade | Backstage – Customizer Demo Access | <= 1.4.2 |
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is CVE-2026-9842?
How severe is CVE-2026-9842?
How do I fix CVE-2026-9842?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-9830The bookingpress-appointment-booking-pro WordPress plugin be…8.2
- CVE-2026-9831A race condition in the shared Extreme Platform ONE IAM Gate…6.3
- CVE-2026-9833The Tag Groups is the Advanced Way to Display Your Taxonomy …7.1
- CVE-2026-9834The WP Database Backup – Unlimited Database & Files Backup b…7.2
- CVE-2026-9836IBM InfoSphere Information Server 11.7.0.0 through 11.7.1.6 …7.5
- CVE-2026-9838The ICS Calendar plugin for WordPress is vulnerable to Refle…6.1
- CVE-2026-9843The Database for Contact Form 7, WPforms, Elementor forms pl…8.1
- CVE-2026-9844Use of default credentials vulnerability in Roche Diagnostic…8.8
- CVE-2026-9848The WP Ticket plugin for WordPress is vulnerable to SQL Inje…7.5
- CVE-2026-9851The Booking Package plugin for WordPress is vulnerable to Pr…7.2
- CVE-2026-9856A vulnerability in huggingface/transformers versions <=5.8.0…7.1
- CVE-2026-9857The Invoice123 plugin for WordPress is vulnerable to authori…4.3
Are you affected by CVE-2026-9842?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST