---
id: CVE-2026-120534
title: >-
  Advanced Custom Fields: Extended PRO <= 0.9.2.6 - Unauthenticated Remote Code
  Execution via Dynamic Render Field Type
summary: >-
  The Advanced Custom Fields: Extended PRO plugin for WordPress is vulnerable to
  Limited Code Injection in all versions up to, and including, 0.9.2.6 via the
  render_field function. This is due to insufficient validation of form
  configurati…
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-434
vendor: ACF Extended
product: 'Advanced Custom Fields: Extended PRO'
affected:
  - advanced_custom_fields_extended_pro <= 0.9.2.6
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-11-03T17:55:04.158984Z'
published: '2026-11-03'
updated: '2026-11-03'
sourceUpdated: '2026-11-03T18:33:05.170Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-120534'
references:
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/b8a7a925-2b9e-43bc-b649-c7ec518e063c?source=cve
  - url: 'https://www.acf-extended.com/changelog'
tags:
  - cve.org
epss: 0.00312
epssPercentile: 0.24231
ingestedAt: '2026-11-05T20:33:06.367Z'
---

## Overview

The Advanced Custom Fields: Extended PRO plugin for WordPress is vulnerable to Limited Code Injection in all versions up to, and including, 0.9.2.6 via the render_field function. This is due to insufficient validation of form configuration parameters before merging into field settings and passing to call_user_func_array in the render_field method. This makes it possible for unauthenticated attackers to call arbitrary WordPress functions with controlled arguments. Method 1 requires the administrator to enable the non-default 'shortcode_preview' setting for the target form, while Method 2 requires the server environment to lack OpenSSL functions, causing ACF Pro's acf_decrypt to fall back to unverified base64 decoding.

## Affected

- `advanced_custom_fields_extended_pro <= 0.9.2.6`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.