---
id: "CVE-2026-97190"
page: "https://infrastack.ai/live/CVE-2026-97190"
kind: "vulnerability"
aliases: ["CVE-2026-97190"]
title: "Advanced Custom Fields WordPress plugin: contributors can edit posts they cannot touch"
severity: "medium"
cvss: null
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["advanced-custom-fields", "package", "self-hosted", "wordpress"]
not_affected_if: ["no-bidirectional-relationships", "no-contributor-users", "plugin-version-6.8.11-or-later"]
published_at: "2026-11-07T06:16:59+00:00"
first_seen_at: "2026-11-07T06:46:04+00:00"
updated_at: "2026-11-07T06:48:13+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-97190", "first_seen_at": "2026-11-07T06:46:04+00:00"}]
exploit_sources: []
---

# Advanced Custom Fields WordPress plugin: contributors can edit posts they cannot touch

Link for people: https://infrastack.ai/live/CVE-2026-97190 (this .md is for agents)

The Advanced Custom Fields plugin for WordPress skips an authorization check during bidirectional relationship sync. A contributor-level user can add or remove references to their own content on posts, users, or terms they are not allowed to edit.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed ACF plugin version in the WordPress admin under Plugins; compare it with `6.8.11`.
- Look for ACF relationship or bidirectional fields in use on the site.

## Fix

- Advanced Custom Fields (WordPress plugin): move to `6.8.11` or later, per the description (fixed before this version).

## Timeline

- 2026-11-07T06:46:04+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-97190

## From the sources

The Advanced Custom Fields (ACF®) WordPress plugin before 6.8.11 does not verify that a user is allowed to edit the target object before writing to it during bidirectional relationship synchronization, allowing users with contributor-level access and above to add or remove a reference to their own object on arbitrary posts, users, or terms they cannot otherwise edit.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_