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.
Published: 2026-01-20
Score: 9.8 Critical
EPSS: < 1% Very Low
KEV: No
Impact: Unauthenticated privilege escalation to administrator
Action: Patch Now
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Wed, 21 Jan 2026 11:30:00 +0000

Type Values Removed Values Added
First Time appeared Hwk-fr
Hwk-fr advanced Custom Fields
Wordpress
Wordpress wordpress
Vendors & Products Hwk-fr
Hwk-fr advanced Custom Fields
Wordpress
Wordpress wordpress

Tue, 20 Jan 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 20 Jan 2026 09:45:00 +0000

Type Values Removed Values Added
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.
Title Advanced Custom Fields: Extended <= 0.9.2.1 - Unauthenticated Privilege Escalation via Insert User Form Action
Weaknesses CWE-269
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}


Subscriptions

Hwk-fr Advanced Custom Fields
Wordpress Wordpress
cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-04-08T17:25:47.419Z

Reserved: 2025-12-11T10:11:32.336Z

Link: CVE-2025-14533

cve-icon Vulnrichment

Updated: 2026-01-20T15:09:17.443Z

cve-icon NVD

Status : Deferred

Published: 2026-01-20T10:16:05.583

Modified: 2026-04-15T00:35:42.020

Link: CVE-2025-14533

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-20T21:15:20Z

Weaknesses