Junglewise Threat Intelligence

CVE-2026-15286: Kadence WP Gutenberg Blocks unauthorized post publication in REST API

CVE-2026-15286 · Severity: medium · CVSS 4.3 · Published 2026-07-10

Executive brief

The Kadence Blocks plugin for WordPress, which provides advanced page-building features, contains a security flaw that allows lower-level users to bypass editorial controls. Normally, contributors must have their work reviewed by an administrator before it goes live. This vulnerability allows those users to bypass the review process and immediately publish any type of content, including new pages, which could be used to deface a site or distribute unauthorized information.

Technical details

The vulnerability is classified as an Incorrect Authorization (CWE-863) issue within the 'process_pattern' REST API endpoint. Specifically, the 'get_items_permission_check' function permission callback fails to properly validate user capabilities. An authenticated attacker with Contributor-level permissions or higher can exploit this to create and immediately publish posts or pages, bypassing the 'publish_posts' capability check usually enforced by the WordPress core review workflow. The issue is present in all versions up to and including 3.5.32; a fix was introduced in subsequent updates.

Affected products

  • StellarWP Kadence Blocks — Page Builder Toolkit for Gutenberg Editor 0 - 3.5.32

Timeline

  • 2026-07-10: disclosed: Initial publication of the CVE record.
  • 2026-07-10: advisory: Wordfence published the vulnerability details.

References

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