CVE-2020-36962

CRITICAL 9.8

Tendenci 12.3.1 - CSV/ Formula Injection

CVSS Score

9.8

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-1236
Vendor	tendenci
Product	tendenci
Published	Jan 28, 2026
Last Updated	Mar 5, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

Tendenci / Tendenci

12.3.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

exploit-db.com: https://www.exploit-db.com/exploits/49145 tendenci.com: https://www.tendenci.com/ github.com: https://github.com/tendenci/tendenci vulncheck.com: https://www.vulncheck.com/advisories/tendenci-csv-formula-injection

Credits

Mufaddal Masalawala