Yeah that's correct, CORS is a browser feature. If you had a nefarious browser installed it could indeed defeat CORS, but at that point you already have a nefar

Yeah that's correct, CORS is a browser feature. If you had a nefarious browser installed it could indeed defeat CORS, but at that point you already have a nefarious browser and CORS is the least of your concerns. CORS prevents a malicious site from exfiltrating/accessing data using the access you have, for example an internal site that is on your computer's network but the malicious website's servers can't directly access.