SECURELYN

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.

Scores

5.3
CVSS 5.3 out of 10, medium severity.
12.2%
EPSS 12.2% chance of exploitation in the next 30 days.

The facts

Published
28 January 2026
Last changed
8 October 2026
NVD status
Analyzed
Severity
Medium, CVSS 5.3 out of 10 (version 4.0)
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…
Weakness
Affects
  • tendenci tendenci
Known exploited
Not in the CISA Known Exploited Vulnerabilities catalogue in this build.
EPSS
12.2% chance of exploitation activity in the next 30 days (percentile 96).

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References