Web Security·Web Security essentials

CSRF

Cross-site requests can misuse a signed-in session.

Intermediate 10 min read Lesson 3 of 150 Challenge included
What you will be able to do
  • Use SameSite cookies.
  • Require CSRF tokens.
  • Check Origin for unsafe requests.

In plain English

Cross-site requests can misuse a signed-in session.

  • Use SameSite cookies.
  • Require CSRF tokens.
  • Check Origin for unsafe requests.
cookie.httpHTTP
Set-Cookie: sid=abc; Secure; HttpOnly; SameSite=Lax
Your turn

Explain it back

Easy

Answer from memory: Which cookie attribute limits cross-site sends?

TEXT · starter
Your answer…
Check your understanding before moving on.
Knowledge checkQuestion 1

Which cookie attribute limits cross-site sends?

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