What is Nuclei?

Nuclei is a fast and customizable vulnerability scanner based on YAML templates. It's primarily used by security researchers and penetration testers to identify security vulnerabilities across a wide range of targets, including web applications, networks, and cloud infrastructure. Nuclei works by executing predefined templates that define how to detect specific vulnerabilities, misconfigurations, and exposures. Its key strength lies in its speed, flexibility, and the extensive community-driven template library.