What’s Vulnerable › Vulnerabilities

CVE-2020-36962: Tendenci 12.3.1 - CSV/ Formula Injection

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 12.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-01-28 · updated 2026-10-08
• Weakness: CWE-1236

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.

Affected products

• tendenci: 12.3.1

References

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

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