What are cookies with the HttpOnly attribute?

HttpOnly is a flag attribute for a cookie file that protects it from access through client-side scripts (for example, JavaScript using document.cookie).

Main advantages:

• Protection against XSS (Cross-Site Scripting): An attacker who injects malicious script into a page will not be able to access the cookie content with the HttpOnly flag and, for example, steal the user's session identifier.

Disadvantages:

• Does not prevent CSRF (Cross-Site Request Forgery) attacks.
• Does not protect against network attacks (e.g., man-in-the-middle) if the connection is not encrypted (HTTP instead of HTTPS).

It is recommended to always use HttpOnly for cookies containing important information, such as session identifiers.