Tendenci 12.3.1 CSV/ Formula Injection

2020.12.02

Credit: Mufaddal Masalawala

Risk: Medium

Local: No

Remote: Yes

CVE: N/A

CWE: N/A

#Exploit Title: Tendenci 12.3.1 - CSV/ Formula Injection
#Date: 2020-10-29
#Exploit Author: Mufaddal Masalawala
#Vendor Homepage: https://www.tendenci.com/
#Software Link: https://github.com/tendenci/tendenci
#Version: 12.3.1
#Payload: =10+20+cmd|' /C calc'!A0
#Tested on: Kali Linux 2020.3
#Proof Of Concept:
CSV Injection (aka Excel Macro Injection or Formula Injection) exists in
Contact Us feature in Tendenci v12.3.1 via message field that is mistreated
while exporting to a CSV file.
To exploit this vulnerability:
1. Go to contact us page and enter the payload "=10+20+cmd|' /C
calc'!A0" in the message field and submit the form
2. Login to the application and go to Forms section and export the
contact us form entries
3. Click on Export and save the CSV file downloaded
4. Open the CSV file, allow all popups and our payload is executed
(calculator is opened).

See this note in RAW Version

Vote for this issue:

50%

Thanks for you vote!

Thanks for you comment!
Your message is in quarantine 48 hours.

Comment it here.

Nick (*)

Email (*)

Video

Text (*)

(*) - required fields.

{{ x.nick }} | Date: {{ x.ux * 1000 | date:'yyyy-MM-dd' }} {{ x.ux * 1000 | date:'HH:mm' }} CET+1

{{ x.comment }}

Tendenci 12.3.1 CSV/ Formula Injection

Thanks for you vote!

Thanks for you comment!Your message is in quarantine 48 hours.

Thanks for you comment!
Your message is in quarantine 48 hours.