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DEAuthentication proves who the user is.
Authorization defines what they can do.
But CSRF exploits something else — trust.
When a user is authenticated, the browser automatically sends session credentials with every request. Attackers abuse this behavior by tricking users into submitting unintended actions — without ever stealing their password.
The user remains logged in.
The system sees a valid session.
But the action was never intentional.
This is why secure applications don’t rely solely on session validation. They verify request intent.
State-changing operations should never assume legitimacy just because a session exists. Every sensitive request must prove it originated from your application.
Security is not just about identity —
it’s about validating intention.
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