CVE-2020-36962

Name: CVE-2020-36962
Creator: NVD / NIST
Published: 2026-01-28T18:16:46.277+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 10.68%

Last modified Jun 17, 2026

CVE-2020-36962 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. 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.. EPSS estimates a 10.68% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

9.8/10

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

CVSS 4.0

5.3/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

10.68%

95.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-1236

Affected Software

Vendor	Product	Versions
Tendenci	Tendenci	12.3.1

References

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

Timeline

Published: Jan 28, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2020-36962?

How severe is CVE-2020-36962?

CVE-2020-36962 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 10.68% probability of exploitation in the next 30 days.

How do I fix CVE-2020-36962?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-36962?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST