There is no easy answer to this question. It depends on how the API is implemented and used by the frontend application. If the API requires authentication, then CSRF would not be a problem. However, if the API does not require authentication, then it could be vulnerable to CSRF attacks. For example, consider an API that allows users to add new products to a catalog. If an attacker can inject a malicious link into a web page that is loaded by the target user, they could potentially add new products to the catalog without the user's knowledge or...