Enhancing API Security with Anti-Forgery in Minimal APIs: What's New in ASP.NET Core 8.0

?? What's Changed?

Version Introduced: ASP.NET Core 8.0 RC 1

The game-changer is here! Minimal API endpoints dealing with IFormFile or IFormFileCollection now actively embrace anti-forgery token validation as part of the new security standard.

Previous Behavior ?? New Behavior

Earlier, endpoints binding parameters from the form via IFormFile or IFormFileCollection were exempt from anti-forgery validation. Now, it's mandatory for these endpoints, enhancing the security posture of your APIs.

Breaking Change Alert! ??

Yes, this is a behavioral change, ensuring a more secure API environment. But don't worry, it's for the greater good!

?? How to Adapt?

Recommended Action

Anti-forgery token validation is a security best practice. To embrace it fully, ensure the anti-forgery middleware is registered. For specific endpoints where you want to opt-out, the DisableAntiforgery method comes to your rescue.

var app = WebApplication.Create();

app.MapPost("/", (IFormFile formFile) => ...)
  .DisableAntiforgery();

app.Run();        

?? Secure Your APIs Today!

Stay ahead in the world of API security. Upgrade to ASP.NET Core 8.0 RC 1, implement anti-forgery checks, and ensure your Minimal APIs are fortified against potential threats.