MCIR is a framework designed for building code injection vulnerability testbeds that combines multiple injection testing tools into a unified platform. The framework integrates SQLol, XMLmao, ShelLOL, and XSSmh tools, allowing them to share common features and functionality. This unified approach enables shared updates to sanitization routines, environmental factor options, and interface modifications across all integrated tools. MCIR provides a template-based architecture that allows developers to create new code injection testing tools by reusing existing components and modifying the injection-specific portions. The framework supports testing various types of code injection vulnerabilities including SQL injection, XML injection, shell injection, and cross-site scripting. The modular design facilitates the development of additional injection testing capabilities while maintaining consistency in core functionality and user interface elements across different injection types.