What the vulnerability does
01Description
The Gutenberg Blocks with AI by Kadence WP plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 3.6.1. This is due to a missing capability check in the `process_image_data_ajax_callback()` function which handles the `kadence_import_process_image_data` AJAX action. The function's authorization check via `verify_ajax_call()` only validates `edit_posts` capability but fails to check for the `upload_files` capability. This makes it possible for authenticated attackers, with Contributor-level access and above, to upload arbitrary images from remote URLs to the WordPress Media Library, bypassing the standard WordPress capability restriction that prevents Contributors from uploading files.
Explanation of Vulnerability in Simple Terms
02Summary
Kadence Blocks versions up to 3.6.1 lack proper authorization checks on certain functions, allowing authenticated users with low privileges to modify site content they should not have access to. The vulnerability requires a valid WordPress account but no special interaction. Site administrators should update to a version newer than 3.6.1 to prevent unauthorized content changes.
What an attacker can do
03Attacker Capabilities
Modify site content or settings without proper permission checks.
Potential impact on your site
04Site Impact
Unauthorized users may alter pages, posts, or block settings, compromising site integrity.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege WordPress account (e.g., Contributor or Author role).
Key dates
06Disclosure timeline
February 18, 2026
CVE published
April 8, 2026
Record updated
