No captcha required for preview. Please, do not write just a link to original writeup here. [Link](https://hell38vn.wordpress.com/2020/04/14/ctf-tghack-2020-web-exfiltration-150pt/)

Original writeup (https://hell38vn.wordpress.com/2020/04/14/ctf-tghack-2020-web-exfiltration-150pt/).