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CVE-2026-4326— Vertex Addons for Elementor <= 1.6.4 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Plugin Installation and Activation via 'afeb_activate_required_plugins'

Quick assessment

Affected
webilia Vertex Addons for Elementor
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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 Vertex Addons for Elementor 1.6.4及之前版本存在安全漏洞，该漏洞源于activate_required_plugins函数授权执行不当，可能导致安装和激活任意插件。

CVSS 8.8 · High EPSS 0.82% · P56

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-4326

Vulnerability Information
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Vulnerability Title
Vertex Addons for Elementor <= 1.6.4 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Plugin Installation and Activation via 'afeb_activate_required_plugins'
Source: CVE Program / CVE List V5
Vulnerability Description
The Vertex Addons for Elementor plugin for WordPress is vulnerable to Missing Authorization in all versions up to and including 1.6.4. This is due to improper authorization enforcement in the activate_required_plugins() function. Specifically, the current_user_can('install_plugins') capability check does not terminate execution when it fails — it only sets an error message variable while allowing the plugin installation and activation code to execute. The error response is only sent after the installation and activation have already completed. This makes it possible for authenticated attackers, with Subscriber-level access and above, to install and activate arbitrary plugins from the WordPress.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress plugin Vertex Addons for Elementor 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 Vertex Addons for Elementor 1.6.4及之前版本存在安全漏洞，该漏洞源于activate_required_plugins函数授权执行不当，可能导致安装和激活任意插件。
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
webilia Vertex Addons for Elementor 0 ~ 1.6.4 -

II. Public POCs for CVE-2026-4326

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III. Intelligence Information for CVE-2026-4326

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Vendor Advisories for CVE-2026-4326 (1)

IV. Related Vulnerabilities

Same product: Vertex Addons for Elementor
Same vendor: webilia
Same weakness: CWE-862

V. Comments for CVE-2026-4326

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