Appsanity starts with two websites that share a JWT secret, and thus I can get a cookie from one and use it on the other. On the first, I’ll register an account, and abuse a hidden input vulnerability to get evelated privilieges as a doctor role. Then I’ll use that cookie on the other site to get access, where I find a serverside request forgery, as well as a way to upload PDFs. I’ll bypass a filter to upload a webshell, and use the SSRF to reach the internal management page and trigger...
