Custom content structures are a cornerstone of advanced WordPress development. The Custom Post Type UI plugin empowers administrators and developers by offering a robust and user-friendly interface for registering and managing custom post types and taxonomies—without writing a single line of code.

Custom Post Type UI has successfully passed a comprehensive security audit and earned the Plugin Security Certification (PSC-2025-64579) from CleanTalk. This milestone confirms that the plugin adheres to the highest standards of secure coding practices, allowing users to leverage custom content types with confidence and protection.

From streamlining content architecture to enabling flexible taxonomies, CPTUI enhances WordPress functionality without compromising security.

Name of	Custom Post Type UI
Version	1.18.0
Downloads	1 000 000+
Description	Admin UI for creating custom content types like post types and taxonomies
Security	Successfully tested for SQL Injections, XSS Attacks, CSRF Attacks, Authentication Vulnerabilities, Authentication Bypass Vulnerabilities, Privilege Escalation Vulnerabilities, Buffer Overflow Vulnerabilities, Denial-of-Service (DoS) Vulnerabilities, Data Leakage Vulnerabilities, Insecure Dependencies, Code Execution Vulnerabilities, Privilege Escalation Vulnerabilities, File Unauthorized Access Vulnerabilities, Insufficient Injection Protection, and Information Leakage Vulnerabilities.
CleanTalk Certification	Proudly earned the “Plugin Security Certification” (PSC) from CleanTalk, indicating adherence to stringent security standards.
Additional Information	Users can confidently manage age restrictions with the assurance of the “Plugin Security Certification” (PSC). Verify the latest details on the plugin developer’s website.
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Key Features

Custom Post Type UI provides a fully featured administrative UI for creating and managing your custom content types and taxonomies:

• 🛠️ Post Type Registration: Easily register custom post types without touching functions.php or writing register_post_type() code.
• 🧬 Custom Taxonomies: Define and manage custom taxonomies to associate with native or custom post types.
• 👁️ UI-Driven Configuration: All fields and settings are accessible through a clean admin interface, complete with contextual tooltips.
• 🔄 Export & Import: Easily export your custom configurations to move between environments or share with teammates.
• 🔄 Integration with CPTUI Extended: Use CPTUI Extended to display custom post type content with pre-built layouts—no templating required.
• 🌐 Multisite Compatible: Fully tested and functional in WordPress Multisite environments.
• 🧪 Developer Friendly: Full support for hook-based customization and extensibility.
• 📦 Open Source: Developed in the open on GitHub, encouraging transparency and contributions.

It’s a tool that simplifies the complex and supports both technical users and non-technical admins alike.

Security Assurance

Security is critical when managing site structure, post types, and taxonomy definitions, especially when configurations are stored and exposed via the admin panel. Custom Post Type UI  has been carefully reviewed under CleanTalk’s Plugin Security Certification Program and successfully passed all checks, ensuring that no functionality introduces risk to the WordPress environment.

The plugin was tested for and found secure against the following vulnerabilities:

• ✅ SQL Injection (SQLi)
• ✅ Cross-Site Scripting (XSS) – Stored & Reflected
• ✅ Cross-Site Request Forgery (CSRF)
• ✅ Authentication & Authorization Bypass
• ✅ Privilege Escalation
• ✅ Buffer Overflow Exploits
• ✅ Denial-of-Service (DoS)
• ✅ Information & Data Leakage
• ✅ Insecure Dependency Inclusion
• ✅ Arbitrary Code Execution
• ✅ File Unauthorized Access & Path Traversal
• ✅ Insufficient Injection Protection

The CleanTalk audit process confirmed the presence of the following best practices and protections in Custom Post Type UI’s codebase:

• 🔒 Nonce Verification: Every action affecting CPT or taxonomy registration is protected by nonce tokens to mitigate CSRF.
• 🔐 User Capability Checks: Only administrators (or users with manage_options capability) can define or modify CPT and taxonomy settings.
• 🧼 Input Sanitization & Escaping: All user inputs are validated, sanitized, and properly escaped before being stored or rendered in the admin interface.
• 🛑 No Arbitrary File Access: The plugin doesn’t handle file uploads or reads from arbitrary paths, eliminating a large attack surface.
• 🧩 Minimal and Verified External Dependencies: The plugin uses only native WordPress APIs and libraries, with no insecure third-party code.
• 🧱 Memory & Resource Safe: CPTUI does not introduce memory exhaustion risks or infinite loops during content processing.

Every attack vector was considered, from CSRF nonce enforcement to information disclosure via debug output, ensuring Custom Post Type UI is safe for production environments, even on large-scale or multisite deployments.

Conclusion

Custom Post Type UI stands out as a powerful content architecture tool that not only simplifies the process of custom post type and taxonomy management but also does so with verifiable security.

With CleanTalk’s Plugin Security Certification (PSC-2025-64579), site owners, developers, and agencies can confidently install and use the plugin knowing it has been tested against all major WordPress security threats.

Custom Post Type UI proves that you don’t have to sacrifice security for usability—and that every piece of your site’s structure can be both customized and protected.

Note: The date and certification information may change over time. It is advisable to verify the latest details on the plugin developer’s website.