Cloudanix VulnDB

CVE-2026-4066

Medium · 4.3

CVSS

4.3

EPSS

0.4%

Published

Mar 23, 2026

CISA due date

—

The record

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.

Affected packages

Ecosystem Package Introduced Fixed

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