Web Storage (localStorage, sessionStorage, cookies)
What security vulnerability can arise from storing JWT tokens in Web Storage?
Storing JWT tokens in Web Storage makes them vulnerable to XSS attacks: 1) JavaScript can access Web Storage, making stored tokens accessible to XSS attacks, 2) Malicious scripts can steal tokens and impersonate users, 3) HTTP-only cookies are more secure for token storage, 4) XSS attacks cannot access HTTP-only cookies, 5) Web Storage should not be used for sensitive authentication data, 6) This vulnerability can lead to session hijacking, 7) The risk is present even with other security measures in place, 8) Understanding this security implication is crucial for proper authentication implementation.