Kadence Blocks <= 3.7.7 - Missing Authorization to Authenticated (Contributor+) Arbitrary Media Attachment Creation via kadence_import_process_pattern/kadence_import_process_data AJAX Actions

Wordfence Intelligence   >   Vulnerability Database   >   Kadence Blocks <= 3.7.7 - Missing Authorization to Authenticated (Contributor+) Arbitrary Media Attachment Creation via kadence_import_process_pattern/kadence_import_process_data AJAX Actions
4.3
Missing Authorization
CVE CVE-2026-12902
CVSS 4.3 (Medium)
Publicly Published June 30, 2026
Last Updated July 1, 2026
Researcher se1en

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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Vulnerability Details for Kadence Blocks — Page Builder Toolkit for Gutenberg Editor

Kadence Blocks — Page Builder Toolkit for Gutenberg Editor

Software Type Plugin
Software Slug kadence-blocks (view on wordpress.org)
Patched? Yes
Remediation Update to version 3.7.8, or a newer patched version
Affected Version
  • <= 3.7.7
Patched Version
  • 3.7.8

Recent vulnerabilities in Kadence Blocks — Page Builder Toolkit for Gutenberg Editor

Kadence Blocks <= 3.7.8.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Identity Block Inner Image Content
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CVE-2026-18062
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Researcher: theviper17y
Kadence Blocks <= 3.7.8 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'toggleIcon' Block Attribute
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CVE-2026-18435
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Researcher: Wordfence PRISM
Kadence Blocks — Page Builder Toolkit for Gutenberg Editor <= 3.7.8 - Authenticated (Contributor+) Information Exposure
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CVE-2026-66696
Jul 29, 2026
Researcher: Abdullah Kareem "cyberkareem"
Kadence Blocks <= 3.7.7 - Insecure Direct Object Reference to Authenticated (Contributor+) Arbitrary Optimizer Data Deletion/Read/Modification via 'post_path' Parameter
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CVE-2026-12904
Jun 30, 2026
Researcher: se1en
Kadence Blocks <= 3.7.5 - Authenticated (Contributor+) Sensitive Information Exposure via Block Editor proData Localization
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CVE-2026-11357
Jun 17, 2026
Researcher: se1en
Kadence Blocks — Page Builder Toolkit for Gutenberg Editor <= 3.6.3 - Missing Authorization to Authenticated (Contributor+) Media Upload
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CVE-2026-2826
Apr 3, 2026
Researcher: lucsob
Gutenberg Blocks with AI by Kadence WP <= 3.6.1 - Missing Authorization to Authenticated (Contributor+) Unauthorized Media Upload
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CVE-2026-2633
Feb 17, 2026
Researcher: Ali Sünbül
Gutenberg Blocks with AI by Kadence WP <= 3.6.1 - Authenticated (Contributor+) Server-Side Request Forgery via 'endpoint' Parameter
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CVE-2026-1857
Feb 17, 2026
Researcher: Ali Sünbül
Gutenberg Blocks by Kadence Blocks <= 3.5.32 - Missing Authorization
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CVE-2026-2608
Feb 11, 2026
Researcher: johska
Gutenberg Blocks with AI by Kadence WP – Page Builder Features <= 3.5.32 - Incorrect Authorization to Authenticated (Contributor+) Post Publication
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CVE-2026-15286
Feb 10, 2026
Researcher: johska
# Title CVE ID CVSS Researchers Date
1 Kadence Blocks <= 3.7.8.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Identity Block Inner Image Content CVE-2026-18062 6.4 theviper17y July 31, 2026
2 Kadence Blocks <= 3.7.8 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'toggleIcon' Block Attribute CVE-2026-18435 6.4 Wordfence PRISM July 31, 2026
3 Kadence Blocks — Page Builder Toolkit for Gutenberg Editor <= 3.7.8 - Authenticated (Contributor+) Information Exposure CVE-2026-66696 4.3 Abdullah Kareem "cyberkareem" July 29, 2026
4 Kadence Blocks <= 3.7.7 - Insecure Direct Object Reference to Authenticated (Contributor+) Arbitrary Optimizer Data Deletion/Read/Modification via 'post_path' Parameter CVE-2026-12904 4.3 se1en June 30, 2026
5 Kadence Blocks <= 3.7.5 - Authenticated (Contributor+) Sensitive Information Exposure via Block Editor proData Localization CVE-2026-11357 4.3 se1en June 17, 2026
6 Kadence Blocks — Page Builder Toolkit for Gutenberg Editor <= 3.6.3 - Missing Authorization to Authenticated (Contributor+) Media Upload CVE-2026-2826 4.3 lucsob April 3, 2026
7 Gutenberg Blocks with AI by Kadence WP <= 3.6.1 - Missing Authorization to Authenticated (Contributor+) Unauthorized Media Upload CVE-2026-2633 4.3 Ali Sünbül February 17, 2026
8 Gutenberg Blocks with AI by Kadence WP <= 3.6.1 - Authenticated (Contributor+) Server-Side Request Forgery via 'endpoint' Parameter CVE-2026-1857 4.3 Ali Sünbül February 17, 2026
9 Gutenberg Blocks by Kadence Blocks <= 3.5.32 - Missing Authorization CVE-2026-2608 4.3 johska February 11, 2026
10 Gutenberg Blocks with AI by Kadence WP – Page Builder Features <= 3.5.32 - Incorrect Authorization to Authenticated (Contributor+) Post Publication CVE-2026-15286 4.3 johska February 10, 2026
View more vulnerabilities in this software package View more vulnerabilities

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