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CVE-2026-1857— Gutenberg Blocks with AI by Kadence WP <= 3.6.1 - Authenticated (Contributor+) Server-Side Request Forgery via 'endpoint' Parameter

CVSS 4.3 · Medium EPSS 0.01% · P2
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I. Basic Information for CVE-2026-1857

Vulnerability Information
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Vulnerability Title
Gutenberg Blocks with AI by Kadence WP <= 3.6.1 - Authenticated (Contributor+) Server-Side Request Forgery via 'endpoint' Parameter
Source: NVD (National Vulnerability Database)
Vulnerability Description
The Gutenberg Blocks with AI by Kadence WP plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 3.6.1. This is due to insufficient validation of the `endpoint` parameter in the `get_items()` function of the GetResponse REST API handler. The endpoint's permission check only requires `edit_posts` capability (Contributor role) rather than `manage_options` (Administrator). This makes it possible for authenticated attackers, with Contributor-level access and above, to make server-side requests to arbitrary endpoints on the configured GetResponse API server, retrieving sensitive data such as contacts, campaigns, and mailing lists using the site's stored API credentials. The stored API key is also leaked in the request headers.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
服务端请求伪造(SSRF)
Source: NVD (National Vulnerability Database)
Vulnerability Title
WordPress plugin Gutenberg Blocks with AI by Kadence WP 代码问题漏洞
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及之前版本存在代码问题漏洞，该漏洞源于对GetResponse REST API处理程序中get_items函数的endpoin
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

VendorProductAffected VersionsCPESubscribe
stellarwpKadence Blocks — Page Builder Toolkit for Gutenberg Editor * ~ 3.6.1 -

II. Public POCs for CVE-2026-1857

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III. Intelligence Information for CVE-2026-1857

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Same Patch Batch · stellarwp · 2026-02-18 · 3 CVEs total

CVE-2026-13044.4 MEDIUMMembership Plugin – Restrict Content <= 3.2.18 - Authenticated (Administrator+) Stored Cro
CVE-2026-26334.3 MEDIUMGutenberg Blocks with AI by Kadence WP <= 3.6.1 - Missing Authorization to Authenticated (

IV. Related Vulnerabilities

Same product: Kadence Blocks — Page Builder Toolkit for Gutenberg Editor
Same vendor: stellarwp
Same weakness: CWE-918

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