CORS (Cross-Origin Resource Sharing) is a browser security feature that restricts web pages from making requests to a different origin (domain) than the one it originated from, preventing unauthorized access to resources and enhancing web security.

CORS (Cross-Origin Resource Sharing) is used for enforcing browser security policies that prevent web pages from making cross-origin requests (requests to a different domain) to protect sensitive data and prevent unauthorized access to resources. It allows servers to control which origins can access their resources and enables secure communication between web applications from different domains. CORS is essential for ensuring web application security and preventing potential security vulnerabilities like cross-site request forgery (CSRF) and cross-site scripting (XSS) attacks.