CVE-2026-81284 MEDIUM

CVE-2026-81284: WordPress ACF Extended plugin <= 0.9.2.6 - Broken Access Control vulnerability

Vendor Acf Extended
Product ACF Extended
Weakness CWE-862 · Missing authorization
Published August 28, 2026
Last update August 28, 2026
View on NVD All CVEs

CVSS base score

4.3/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality None
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

What the vulnerability does

01Description

Contributor Broken Access Control in ACF Extended <= 0.9.2.6 versions.

Explanation of Vulnerability in Simple Terms

02Summary

ACF Extended versions up to 0.9.2.6 lack proper authorization checks, allowing authenticated users with low privileges to modify data they should not have access to. The vulnerability requires a valid user account but no special interaction. Site administrators should update to a version newer than 0.9.2.6 to prevent unauthorized data changes.

What an attacker can do

03Attacker Capabilities

Modify data or settings they lack permission to change.

Potential impact on your site

04Site Impact

Unauthorized users can alter site content, settings, or custom field data they shouldn't access.

Conditions required to exploit

05Prerequisites

Attacker must have a valid low-privilege user account on the site.

Key dates

06Disclosure timeline

August 28, 2026 CVE published

Related vulnerabilities

08Related CVE

CVE-2026-66595 WordPress WP Data Access plugin <= 5.5.80 - Broken Access Control vulnerability CVE-2026-66464 WordPress Internal Link Optimiser plugin <= 5.2.7 - Broken Access Control vulnerability CVE-2026-18431 Avada <= 7.16 and Fusion Builder <= 3.16 - Unauthenticated Remote Code Execution via Arbitrary File Write CVE-2026-28181 WordPress AcyMailing SMTP Newsletter plugin <= 10.11.1 - Broken Access Control vulnerability CVE-2026-28571 WordPress FormyChat plugin <= 2.15.7 - Broken Access Control vulnerability