RCE in Advanced Custom Fields: Extended
CVE-2026-94267
The Advanced Custom Fields: Extended WordPress plugin before 0.9.2.8, Advanced Custom Fields: Extended PRO WordPress plugin before 0.9.2.8 does not perform any capability check when updating a post through one of its front-end form actions, allowing unauthenticated visitors to overwrite arbitrary posts, including the ones in which the site stores its own field definitions, which in turn leads to arbitrary code execution on the server. Exploitation requires the site to publish a form whose post-update action maps both its target and its content to visitor-submitted values.
Vulnerability class: RCE (Remote Code Execution)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.0 (Critical). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Advanced Custom Fields: Extended
Weakness classification (CWE)
References
- wpscan.com/vulnerability/9c8f45c1-cd85-4a9c-be77-88801d8143ce/ (technical-description, exploit, vdb-entry)
Frequently asked questions
- What is CVE-2026-94267?
- CVE-2026-94267 is a critical-severity vulnerability in Advanced Custom Fields: Extended, classified under Code Injection. CVSS score: 9.0/10. Published 2026-10-23.
- How severe is CVE-2026-94267?
- Critical severity. CVSS v3 base score is 9.0 out of 10.