cvedb.io
CVE-2026-4066
MEDIUM · CVSS 4.3
EPSS exploitation probability: 0%
Published 2026-03-23T23:17:13.227 · Last modified 2026-06-17T10:55:56.017

Summary

The Smart Custom Fields plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the relational_posts_search() function in all versions up to, and including, 5.0.6. This makes it possible for authenticated attackers, with Contributor-level access and above, to read private and draft post content from other authors via the smart-cf-relational-posts-search AJAX action. The function queries posts with post_status=any and returns full WP_Post objects including post_content, but only checks the generic edit_posts capability instead of verifying whether the requesting user has permission to read each individual post.

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.