CVE-2026-2633— Gutenberg Blocks with AI by Kadence WP <= 3.6.1 - Missing Authorization to Authenticated (Contributor+) Unauthorized Media Upload
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I. Basic Information for CVE-2026-2633
Vulnerability Information
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Vulnerability Title
Gutenberg Blocks with AI by Kadence WP <= 3.6.1 - Missing Authorization to Authenticated (Contributor+) Unauthorized Media Upload
Source: NVD (National Vulnerability Database)
Vulnerability Description
The Gutenberg Blocks with AI by Kadence WP plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 3.6.1. This is due to a missing capability check in the `process_image_data_ajax_callback()` function which handles the `kadence_import_process_image_data` AJAX action. The function's authorization check via `verify_ajax_call()` only validates `edit_posts` capability but fails to check for the `upload_files` capability. This makes it possible for authenticated attackers, with Contributor-level access and above, to upload arbitrary images from remote URLs to the WordPress Media Library, bypassing the standard WordPress capability restriction that prevents Contributors from uploading files.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
授权机制缺失
Source: NVD (National Vulnerability Database)
Vulnerability Title
WordPress plugin Gutenberg Blocks with AI by Kadence WP 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin Gutenberg Blocks with AI by Kadence WP 3.6.1及之前版本存在安全漏洞，该漏洞源于缺少能力检查，可能导致未经授权的图像上传。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| stellarwp | Kadence Blocks — Page Builder Toolkit for Gutenberg Editor | * ~ 3.6.1 | - |
II. Public POCs for CVE-2026-2633
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · stellarwp · 2026-02-18 · 3 CVEs total
| CVE-2026-1304 | 4.4 MEDIUM | Membership Plugin – Restrict Content <= 3.2.18 - Authenticated (Administrator+) Stored Cro |
| CVE-2026-1857 | 4.3 MEDIUM | Gutenberg Blocks with AI by Kadence WP <= 3.6.1 - Authenticated (Contributor+) Server-Side |
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V. Comments for CVE-2026-2633
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