Security Knowledge Base

Comprehensive documentation for security researchers and professionals

t4

Security Researcher Detected: You might have ended up here because your site vulnerability scanner found something interesting. Hi! I'm a security engineer and I'm having a good time interacting with the people and bots that are interested in information security.

You will hopefully find this site is well-secured and I'm not interested in being hacked. I'm interested in learning about how people try to hack me, though.

What is this endpoint?

t4

T4 templating engine

What an attacker could do

If a T4 (Text Template Transformation Toolkit) processing endpoint is reachable, attacker-controlled template input can lead to server-side template injection and arbitrary code execution in the .NET host process.

How to defend it

Never render T4 templates from untrusted input at runtime; pre-compile templates at build time and ensure no template-processing endpoint is exposed to user requests.

Connect with the Security Engineer

Follow me on these platforms where I occasionally share interesting security insights and research.

Learn More

Want to dive deeper into this topic? Check out the official documentation.

Read Official Documentation