. The server is configured to trust this custom header, assuming that only a developer would know to send it. When present, the server bypasses standard authentication checks and grants access to sensitive data, such as a user's private notes or a "flag". How to Execute the Bypass
Verify if req.headers['x-dev-access'] === 'yes' . note jack temporary bypass use header xdevaccess yes better
Standard configuration changes often require restarting the service (downtime). Headers are evaluated at runtime. You can inject the bypass while the server is handling thousands of other secure requests. note jack temporary bypass use header xdevaccess yes better