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CVE-2026-2826

MEDIUM 4.3 CVSS 3.1
Published
April 4, 2026
Last modified
July 21, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-862
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Description

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.

Affected WordPress components

  • Kadence Blocks — Page Builder Toolkit for Gutenberg Editor Plugin · kadence-blocks
    Confirmed match Active
    Up to and including 3.6.3
    View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • stellarwp Kadence Blocks — Page Builder Toolkit for Gutenberg Editor — Up to and including 3.6.3

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.6.4/includes/class-kadence-blocks-prebuilt-library-rest-api.php#L1224
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/5f91df7e-5d9d-4a3a-9afc-d771106a0be6?source=cve
  • nvd.nist.gov Official NVD record