Remediation Steps
Follow the steps below to remediate this finding on Microsoft IIS webserver.
Open IIS Manager.
Select your website.
Double-click HTTP Response Headers.
Click Add in the Actions pane and enter:
- NAME: Content-Security-Policy
- VALUE: default-src 'self'; script-src 'self'; object-src 'none';
Adjust the policy to match your site's actual resource origins before enforcing.
Click OK.