CVE-2026-3309— Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress <= 4.16.11 - Unauthenticated Arbitrary Shortcode Execution via Checkout Billing Fields
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I. Basic Information for CVE-2026-3309
Vulnerability Information
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Vulnerability Title
Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress <= 4.16.11 - Unauthenticated Arbitrary Shortcode Execution via Checkout Billing Fields
Source: NVD (National Vulnerability Database)
Vulnerability Description
The Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 4.16.11. This is due to the plugin allowing user-supplied billing field values from the checkout process to be interpolated into shortcode template strings that are subsequently processed without proper sanitization of shortcode syntax. This makes it possible for unauthenticated attackers to execute arbitrary shortcodes by submitting crafted billing field values during the checkout process.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: NVD (National Vulnerability Database)
Vulnerability Title
WordPress plugin Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress 代码注入漏洞
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 Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – Pro
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 |
|---|---|---|---|---|
| properfraction | Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress | 0 ~ 4.16.11 | - |
II. Public POCs for CVE-2026-3309
| # | POC Description | Source Link | Shenlong Link |
|---|
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IV. Related Vulnerabilities
Same product: Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress
- CVE-2026-4949
ProfilePress <= 4.16.12 - Missing Authorization to Authentic - CVE-2026-3445
Paid Membership Plugin, Ecommerce, User Registration Form, L - CVE-2026-3453
ProfilePress <= 4.16.11 - Insecure Direct Object Reference t - CVE-2025-13642
ProfilePress <= 4.16.7 - Authenticated (Subscriber+) Arbitra - CVE-2025-8878
Paid Membership Plugin, Ecommerce, User Registration Form, L
Same vendor: properfraction
- CVE-2026-4949
ProfilePress <= 4.16.12 - Missing Authorization to Authentic - CVE-2026-3445
Paid Membership Plugin, Ecommerce, User Registration Form, L - CVE-2026-3453
ProfilePress <= 4.16.11 - Insecure Direct Object Reference t - CVE-2025-13642
ProfilePress <= 4.16.7 - Authenticated (Subscriber+) Arbitra - CVE-2025-58596
WordPress MailOptin Plugin <= 1.2.75.0 - Cross Site Scriptin
Same weakness: CWE-94
- CVE-2021-47939
Evolution CMS 3.1.6 Authenticated Remote Code Execution via - CVE-2021-47938
ImpressCMS 1.4.2 Remote Code Execution via Autotasks - CVE-2021-47935
Sentry 8.2.0 Remote Code Execution via Pickle Deserializatio - CVE-2022-50944
Aero CMS 0.0.1 PHP Code Injection via posts.php - CVE-2026-8211
codelibs Fess JSP File AdminDesignAction.java update code in
V. Comments for CVE-2026-3309
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