There are 5 repositories under vulnapp topic.
OWASP Juice Shop: Probably the most modern and sophisticated insecure web application
OWASP Juice Shop Laboratory
Simple Buffer Overflow Walkthrough on the VulnApp.exe application on a Windows 7 Machine.
This is a simple nodeJS vulnerable application. This is made for training purpose
Just another working Docker variant of https://github.com/juice-shop/juice-shop