Description
The absence of the SameSite flag in cookies leaves them vulnerable to cross-site request forgery (CSRF) attacks, where unauthorized actions are performed on behalf of a user. Setting the SameSite flag with an appropriate value prevents browsers from sending cookies in cross-origin requests, thereby mitigating the risk of CSRF attacks.
Recommendation
To enhance security, always set the SameSite flag for cookies, specifying the appropriate value based on the application’s requirements. This helps prevent unauthorized access to cookies and protects against CSRF attacks.
References
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SmartScanner can check your website for Cookie without SameSite Flag and gives you actionable findings to investigate.
Start a free scanRelated Issues
- Session Cookie without SameSite Flag - Vulnerability
- Cookie without HttpOnly Flag - Vulnerability
- Cookie without Secure Flag - Vulnerability
- Session Cookie without Secure Flag - Vulnerability
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See something that needs correcting? Let us knowUpdated May 13, 2024