CVE-2026-12902
Received Received - Intake

Authorization Bypass in Kadence Blocks WordPress Plugin

Publication date: 2026-07-01

Last updated on: 2026-07-01

Assigner: Wordfence

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, 3.7.7. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with contributor-level access and above, to create arbitrary Media Library attachments by downloading remote images to the site's uploads directory via wp_upload_bits() and wp_insert_attachment(), bypassing the upload_files capability boundary.

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Meta Information

Published
2026-07-01
Last Modified
2026-07-01
Generated
2026-07-01
AI Q&A
2026-07-01
EPSS Evaluated
N/A
NVD
CVE-2026-12902
EUVD
EUVD-2026-40895

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
kadence blocks to 3.7.7 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-862 The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

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Impact Analysis

This vulnerability allows attackers with contributor-level access or above to add arbitrary media files to the WordPress Media Library without proper authorization.

This could lead to unauthorized content being uploaded to your site, potentially introducing malicious files or unwanted data, which may affect site integrity and security.

Executive Summary

The Kadence Blocks — Page Builder Toolkit for Gutenberg Editor plugin for WordPress has an authorization bypass vulnerability in all versions up to and including 3.7.7. This occurs because the plugin does not properly verify whether a user is authorized to perform certain actions.

As a result, authenticated users with contributor-level access or higher can exploit this flaw to create arbitrary Media Library attachments by downloading remote images directly to the site's uploads directory. This bypasses the usual upload_files capability checks.

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