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Is it bad to store JWT in localStorage?
A JWT needs to be stored in a safe place inside the user’s browser. If you store it inside localStorage, it’s accessible by any script inside your page. This is as bad as it sounds; an XSS attack could give an external attacker access to the token.
Do we need to store JWT in database?
2 Answers. You could store the JWT in the db but you lose some of the benefits of a JWT. The JWT gives you the advantage of not needing to check the token in a db every time since you can just use cryptography to verify that the token is legitimate.
Should JWT be httpOnly?
Unless you’re storing way to much data in the token you should not have an issue, but it’s always something to consider. Yes, you can also break a JWT token into multiple cookies, but things start to get more complex.
Can local storage Replace cookies?
Local Storage (you’ll find it under Web Storage on W3) is and isn’t a replacement for cookies. In most cases, you can safely use localStorage instead of cookies and get the (wrong) impression that they are the same, while they are not.
Option 1: Store your access token in localStorage : prone to XSS. Option 2: Store your access token in httpOnly cookie: prone to CSRF but can be mitigated, a bit better in terms of exposure to XSS. Option 3: Store your refresh token in httpOnly cookie: safe from CSRF, a bit better in terms of exposure to XSS.
Is it safe to store a JWT in sessionStorage?
A method I’ve used and I think Auth0 indicate is to use the cookie as the JWT storage and use the flags HTTP Only and Secure this way if you have an XSS vulnerability the cookie cannot be read and is only transported in a secure manner. CSRF is less of a risk these days as all the modern frameworks include CSRF mitigation.
Where can I Find my localStorage access token?
This means that the attacker can take the access token that you stored in your localStorage. An XSS attack can happen from a third-party JavaScript code included in your website like React, Vue, jQuery, Google Analytics, etc. It’s almost impossible not to include any third-party libraries in your site.