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.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/tendenci/tendenci	Product
https://www.exploit-db.com/exploits/49145	Exploit Third Party Advisory VDB Entry
https://www.tendenci.com/	Product
https://www.vulncheck.com/advisories/tendenci-csv-formula-injection	Third Party Advisory
https://www.exploit-db.com/exploits/49145	Exploit Third Party Advisory VDB Entry

Configurations

Configuration 1 (hide)

cpe:2.3:a:tendenci:tendenci:12.3.1:*:*:*:*:*:*:*

History

02 Feb 2026, 19:13

Type	Values Removed	Values Added
First Time		Tendenci Tendenci tendenci
CPE		cpe:2.3:a:tendenci:tendenci:12.3.1:::::::*
References	~~() https://github.com/tendenci/tendenci -~~	() https://github.com/tendenci/tendenci - Product
References	~~() https://www.exploit-db.com/exploits/49145 -~~	() https://www.exploit-db.com/exploits/49145 - Exploit, Third Party Advisory, VDB Entry
References	~~() https://www.tendenci.com/ -~~	() https://www.tendenci.com/ - Product
References	~~() https://www.vulncheck.com/advisories/tendenci-csv-formula-injection -~~	() https://www.vulncheck.com/advisories/tendenci-csv-formula-injection - Third Party Advisory

29 Jan 2026, 19:16

Type	Values Removed	Values Added
References	~~() https://www.exploit-db.com/exploits/49145 -~~	() https://www.exploit-db.com/exploits/49145 -

28 Jan 2026, 18:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-01-28 18:16

Updated : 2026-02-02 19:13

NVD link : CVE-2020-36962

Mitre link : CVE-2020-36962

CVE.ORG link : CVE-2020-36962

JSON object : View

Products Affected

tendenci

tendenci

CWE

CWE-1236

Improper Neutralization of Formula Elements in a CSV File

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