---
id: CVE-2026-88974
title: WPGraphQL provides a GraphQL API for WordPress sites
summary: >-
  WPGraphQL provides a GraphQL API for WordPress sites. Prior to 2.22.2, the
  updatePost mutation in src/Mutation/PostObjectUpdate.php checks only the
  collection-level edit_posts capability and the post author, but does not
  enforce the obje…
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L'
cwe:
  - CWE-863
vendor: wp-graphql
product: wp-graphql
affected:
  - wp-graphql < 2.22.2
published: '2026-09-23'
updated: '2026-09-23'
sourceUpdated: '2026-09-23T18:12:04.247'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-88974'
references:
  - url: >-
      https://github.com/wp-graphql/wp-graphql/commit/55441663eaa33c3f2e05de038c8286c845916461
    label: security-advisories@github.com
  - url: 'https://github.com/wp-graphql/wp-graphql/pull/4270'
    label: security-advisories@github.com
  - url: 'https://github.com/wp-graphql/wp-graphql/releases/tag/wp-graphql%2Fv2.22.2'
    label: security-advisories@github.com
  - url: >-
      https://github.com/wp-graphql/wp-graphql/security/advisories/GHSA-5mmc-8pc9-wggg
    label: security-advisories@github.com
  - url: >-
      https://github.com/wp-graphql/wp-graphql/security/advisories/GHSA-5mmc-8pc9-wggg
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: 'https://github.com/advisories/GHSA-5mmc-8pc9-wggg'
tags:
  - nvd
  - cve.org
  - exploit-available
  - ghsa
  - composer
aliases:
  - GHSA-5mmc-8pc9-wggg
ecosystem: composer
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-23T16:21:07.871440Z'
ingestedAt: '2026-09-23T14:25:29.804Z'
---

## Overview

WPGraphQL provides a GraphQL API for WordPress sites. Prior to 2.22.2, the updatePost mutation in src/Mutation/PostObjectUpdate.php checks only the collection-level edit_posts capability and the post author, but does not enforce the object-level edit_post capability or require publish_posts for public status transitions. An authenticated Contributor can therefore publish the Contributor's own draft without editorial approval or modify the Contributor's previously published post despite lacking edit_published_posts, while posts owned by other authors remain protected. This issue is fixed in version 2.22.2.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Package advisory (CVE-2026-88974)

Affected packages:

- `wp-graphql/wp-graphql < 2.22.2`

Source: https://github.com/advisories/GHSA-5mmc-8pc9-wggg