lemlist: SSRF in img.lemlist.com that leads to Localhost Port Scanning

Summary: A SSRF attack can be performed leading to localhost port scanning. Link : https://img.lemlist.com/api/image-templates/itpvBBNpQuMsy6FYLQAc/?preview=true&email=email@ Steps To Reproduce: To perform this port scan you'll need to setup a few files. First of all you need to change the url in...