CVE-2026-2826 Details
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.
A vulnerability exists in the Kadence Blocks Page Builder Toolkit for Gutenberg Editor plugin for WordPress, in all versions through 3.6.3. The issue stems from the plugin's REST API endpoint 'process_pattern', which fails to properly verify if a user has the 'upload_files' capability. This oversight enables authenticated attackers with contributor-level access or higher to upload images to the WordPress Media Library. The images are uploaded by providing remote image URLs, which the server retrieves and saves as media attachments.
Users are advised to update the Kadence Blocks Page Builder Toolkit for Gutenberg Editor plugin to version 3.6.4 or later.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Apr 4, 2026CISA-ADP
Assessed Apr 6, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-862 | Missing Authorization | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Kadence Blocks | All versions |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 21, 2026 | CVE Translated | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 4, 2026 | New CVE Received | [email protected] |
Volerion