003 Target-website.
https://portswigger.net/web-security/xxe/lab-exploiting-xxe-to-retrieve-files

003 XXE-Cheatsheet
https://cheatsheet.haax.fr/web-pentest/files-and-files-inclusions/xxe/

004 Target-website-link
https://portswigger.net/web-security/xxe/lab-exploiting-xxe-to-perform-ssrf