Advanced Custom Fields: Extended <= 0.9.2.1 - Unauthenticated Privilege Escalation via Insert User Form Action

9.8
Improper Privilege Management
CVE CVE-2025-14533
CVSS 9.8 (Critical)
Publicly Published January 19, 2026
Last Updated January 20, 2026
Researcher andrea bocchetti

Description

The Advanced Custom Fields: Extended plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 0.9.2.1. This is due to the 'insert_user' function not restricting the roles with which a user can register. This makes it possible for unauthenticated attackers to supply the 'administrator' role during registration and gain administrator access to the site. Note: The vulnerability can only be exploited if 'role' is mapped to the custom field.

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Vulnerability Details for Advanced Custom Fields: Extended

Software Type Plugin
Software Slug acf-extended (view on wordpress.org)
Patched? Yes
Remediation Update to version 0.9.2.2, or a newer patched version
Affected Version
  • <= 0.9.2.1
Patched Version
  • 0.9.2.2

Recent vulnerabilities in Advanced Custom Fields: Extended

# Title CVE ID CVSS Researchers Date
1 Advanced Custom Fields: Extended <= 0.9.2.5 - Unauthenticated Privilege Escalation via Validation Bypass to '_acf_post_id' Parameter CVE-2026-8809 9.8 daroo May 28, 2026
2 Advanced Custom Fields: Extended <= 0.9.2.3 - Unauthenticated Arbitrary Shortcode Execution CVE-2025-15463 6.5 Kishan Vyas May 12, 2026
3 Advanced Custom Fields: Extended 0.9.0.5 - 0.9.1.1 - Unauthenticated Remote Code Execution in prepare_form CVE-2025-13486 9.8 Marcin Dudek (dudekmar) December 2, 2025
4 Advanced Custom Fields: Extended <= 0.8.9.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode CVE-2023-5292 6.4 István Márton September 29, 2023
5 Advanced Custom Fields: Extended <= 0.8.8.6 - Admin+ SQL Injection CVE-2021-24865 7.2 ZhongFu Su December 24, 2021

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