Basic authentication is a simple authentication scheme built into the HTTP protocol, prompting a form like the one in the image below. This authentication process is different from your application’s own authentication system (or any other form-based authentication); another guide addressing it can be found here.
To set up basic authentication for a target, you’ll need to:
Go to your target settings and select the AUTHENTICATION tab.
Scroll down to the BASIC AUTH section at the bottom.
Enable basic authentication by ticking on My target requires Basic Access Authentication.
The next step is to fill in the form with the credentials and click on SAVE.
After that, your credentials will be saved, and Probely can successfully access and scan your application!
You can enable or disable basic authentication by clicking on the ENABLE / DISABLE button.