Vulnerability 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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/wp-graphql/wp-graphql/commit/55441663eaa33c3f2e05de038c8286c8
- https://github.com/wp-graphql/wp-graphql/pull/4270
- https://github.com/wp-graphql/wp-graphql/releases/tag/wp-graphql%2Fv2.22.2
- https://github.com/wp-graphql/wp-graphql/security/advisories/GHSA-5mmc-8pc9-wggg
- https://github.com/wp-graphql/wp-graphql/security/advisories/GHSA-5mmc-8pc9-wggg
FAQ
What is CVE-2026-88974?
CVE-2026-88974 is a vulnerability with a CVSS score of 5.4 (MEDIUM). 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 ...
How severe is CVE-2026-88974?
CVE-2026-88974 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-88974?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.