CVE-2026-8382

Advanced Custom Fields (ACF®) <= 6.8.1 - Unauthenticated Arbitrary Post Modification via Front-End Form '_post_title' and '_post_content' Parameters

MEDIUM
5.3
CVSS Score
Published: May 31, 2026 at 02:28 AM UTC
Updated: July 22, 2026 at 07:37 AM UTC
1 product affected across 1 vendorAdvanced Custom Fields

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

The Advanced Custom Fields (ACF®) plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 6.8.1. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to overwrite the post_title and post_content of any post bound to a publicly accessible acf_form() instance by injecting values into the _post_title and _post_content parameters of a form submission request.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≤ 6.8.1

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUMWordfence
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-862

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