CVE-2026-88974

WPGraphQL: Contributor can publish and modify posts without the required capabilities via updatePost

Published Sep 23, 2026 CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed
Description
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

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-5mmc-8pc9-wggg WPGraphQL: Contributor can publish and modify posts without the required capabilities via updatePost
History
Type Values Removed Values Added
First Time appeared Wordpress-extensions
Wordpress-extensions wpgraphql
Wpgraphql
Wpgraphql wpgraphql
Vendors & Products Wordpress-extensions
Wordpress-extensions wpgraphql
Wpgraphql
Wpgraphql wpgraphql
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title WPGraphQL: Contributor can publish and modify posts without the required capabilities via updatePost
Weaknesses CWE-863
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Sep 23, 2026, 4:21 PM
Reserved
Sep 10, 2026, 4:02 PM
Status
Awaiting Analysis
Published
Sep 23, 2026, 3:17 PM
Modified
Sep 23, 2026, 6:12 PM