CVE-2020-36962
Tendenci 12.3.1 - CSV/ Formula Injection
CVSS v3
9.8
CRITICAL
EPSS Score
12.2 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
poc
SSVC status
Description
Tendenci 12.3.1 contains a CSV formula injection vulnerability in the contact form message field that allows attackers to inject malicious formulas during export. Attackers can submit crafted payloads like '=10+20+cmd|' /C calc'!A0' in the message field to trigger arbitrary command execution when the CSV is opened in spreadsheet applications.
Technical details
- Published
- 2026-01-28
- Last Modified
- 2026-02-02
Frequently asked questions
What is CVE-2020-36962?
Tendenci 12.3.1 contains a CSV formula injection vulnerability in the contact form message field that allows attackers to inject malicious formulas during export. Attackers can submit crafted payloads like '=10+20+cmd|' /C calc'!A0' in the message field to trigger arbitrary command execution when the CSV is opened in spreadsheet applications.
Is CVE-2020-36962 actively exploited?
A proof-of-concept exploit exists for CVE-2020-36962, but active exploitation has not been confirmed at this time.
What is the CVSS score for CVE-2020-36962?
CVE-2020-36962 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2020-36962 affecting your environment?
Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.
No credit card required · 500 free checks/month · Free API key
Other 2020 vulnerabilities worth triaging
Ranked by exploit probability (EPSS).