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Thingsboard 3.3.1 Cross Site Scripting

Thingsboard 3.3.1 Cross Site Scripting
Posted Aug 8, 2022
Authored by Steffen Langenfeld, Sebastian Biehler

Thingsboard version 3.3.1 suffers from multiple persistent cross site scripting vulnerabilities.

tags | exploit, vulnerability, xss
advisories | CVE-2021-42750, CVE-2021-42751
SHA-256 | ebc19fabae10baaf27a649ed72c78fdc00a6360b84c4b01f5754b78406a8b3c2

Thingsboard 3.3.1 Cross Site Scripting

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# Exploit Title: ThingsBoard 3.3.1 - Stored Cross-Site Scripting (XSS) within the description of a rule node
# Date: 03/08/2022
# Exploit Author: Steffen Langenfeld & Sebastian Biehler
# Vendor Homepage: https://thingsboard.io/
# Software Link: https://github.com/thingsboard/thingsboard/releases/tag/v3.3.1
# Version: 3.3.1
# Tested on: [relevant os]
# CVE : CVE-2021-42751
# Tested on: Linux

#Proof-Of-Concept:
When creating a rule node (any) and putting a script payload inside the description of the rule node, it is executed upon hovering above the node within the editor.

#Steps

1. Create a new rule node (via the menu "Rule chains")
2. Put a javascript payload within the description e.g <script>alert('XSS')</script>
3. Save the node
4. Upon hovering above the node within the editor the payload is executed# Exploit Title: ThingsBoard 3.3.1 - Stored Cross-Site Scripting (XSS) within the name of a rule node



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# Date: 03/08/2022
# Exploit Author: Steffen Langenfeld & Sebastian Biehler
# Vendor Homepage: https://thingsboard.io/
# Software Link: https://github.com/thingsboard/thingsboard/releases/tag/v3.3.1
# Version: 3.3.1
# CVE : CVE-2021-42750
# Tested on: Linux

#Proof-Of-Concept:
When creating a rule node (any) and putting a script payload inside the name of the rule node, it is executed upon hovering above the node within the editor.

#Steps

1. Create a new rule node (via the menu "Rule chains")
2. Put a javascript payload within the name e.g <script>alert('XSS')</script>
3. Save the node
4. Upon hovering above the node within the editor the payload is executed
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