AUGUST 4, 2026
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Case File

CVE-2026-4066

MEDIUM · CVSS 4.3 EPSS 0.29%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2026-03-23 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 4.3. It affects WordPress. Exploitation may require the attacker to be authenticated.

CVE
CVE-2026-4066
Severity
MEDIUM
CVSS
4.3
EPSS
0.29%
WordPress

Original NVD Description

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.