---
id: CVE-2026-2826
title: >-
  The Kadence Blocks — Page Builder Toolkit for Gutenberg Editor plugin for
  WordPress is vulnerable to authorization bypass in all versions up to, and
  including, 3.6.3
summary: >-
  The Kadence Blocks — Page Builder Toolkit for Gutenberg Editor plugin for
  WordPress is vulnerable to authorization bypass in all versions up to, and
  including, 3.6.3. This is due to the plugin not properly verifying that a user
  has the `…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N'
cwe:
  - CWE-862
published: '2026-04-04'
updated: '2026-07-21'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-2826'
references:
  - url: >-
      https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.6.4/includes/class-kadence-blocks-prebuilt-library-rest-api.php#L1224
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/5f91df7e-5d9d-4a3a-9afc-d771106a0be6?source=cve
    label: security@wordfence.com
tags:
  - nvd
epss: 0.00301
epssPercentile: 0.23023
ingestedAt: '2026-07-21T19:53:39.827Z'
---

## Overview

The Kadence Blocks — Page Builder Toolkit for Gutenberg Editor plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 3.6.3. This is due to the plugin not properly verifying that a user has the `upload_files` capability in the `process_pattern` REST API endpoint. This makes it possible for authenticated attackers, with contributor level access and above, to upload images to the WordPress Media Library by supplying remote image URLs that the server downloads and creates as media attachments.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.