Critical vulnerabilities exist in several JSON Web Token (JWT) libraries – namely the JavaScript and PHP versions – that could let an attacker bypass the verification step.

Create and validate the JSON Web Token in the Program.cs file. Note that all of the code examples shown in this post, except the User model class, should be part of Program.cs.

JSON is the leading data interchange format for web applications and more. Here’s what you need to know about JavaScript Object Notation.

A report from Palo Alto Networks’ cybersecurity arm, Unit 42 outlined how the flaw would allow the server to verify a maliciously crafted JSON web token (JWT) request, thus granting the ...