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CVE-2021-4331— The Plus Addons for Elementor PRO <= 4.1.9 & The Plus Addons for Elementor <= 2.0.6 - Authenticated (Contributor+) Privilege Escalation

Quick assessment

Affected
posimyththemes The Plus Addons for Elementor – Addons for Elementor, Page Templates, Widgets, Mega Menu, WooCommerce
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。该平台支持在PHP和MySQL的服务器上架设个人博客网站。WordPress plugin是一个应用插件。 WordPress plugin Plus Addons for Elementor 4.1.9及之前版本存在安全漏洞，该漏洞源于存在权限升级漏洞，攻击者利用该漏洞可以提升权限。

CVSS 8.8 · High EPSS 0.89% · P58
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I. Basic Information for CVE-2021-4331

Vulnerability Information
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Vulnerability Title
The Plus Addons for Elementor PRO <= 4.1.9 & The Plus Addons for Elementor <= 2.0.6 - Authenticated (Contributor+) Privilege Escalation
Source: CVE Program / CVE List V5
Vulnerability Description
The Plus Addons for Elementor plugin for WordPress is vulnerable to privilege escalation in versions up to, and including 4.1.9 (pro) and 2.0.6 (free). The plugin adds a registration form to the Elementor page builders functionality. As part of the registration form, users can choose which role to set as the default for users upon registration. This field is not hidden for lower-level users so any user with access to the Elementor page builder, such as contributors, can set the default role to administrator. Since contributors can not publish posts, only author+ users can elevate privileges without interaction via a site administrator (to approve a post).
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 Plus 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。该平台支持在PHP和MySQL的服务器上架设个人博客网站。WordPress plugin是一个应用插件。 WordPress plugin Plus Addons for Elementor 4.1.9及之前版本存在安全漏洞，该漏洞源于存在权限升级漏洞，攻击者利用该漏洞可以提升权限。
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
Unknown The Plus Addons for Elementor Page Builder * ~ 4.1.9 -
posimyththemes The Plus Addons for Elementor | FREE Elementor Widgets & Elementor Templates, Header Menu, Blog Post Builder, Dark Mode, Full-Page Scroll, Cross Domain Copy * ~ 2.0.6 -

II. Public POCs for CVE-2021-4331

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III. Intelligence Information for CVE-2021-4331

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Vendor Advisories for CVE-2021-4331 (1)

IV. Related Vulnerabilities

Same product: The Plus Addons for Elementor – Addons for Elementor, Page Templates, Widgets, Mega Menu, WooCommerce
Same vendor: posimyththemes
Same weakness: CWE-862

V. Comments for CVE-2021-4331

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