CVE-2020-36962
Critical
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.
SeverityCritical
CVSS9.8
Exploit probability—
Product
Tendenci
PublishedJan 28, 2026
First seenJan 28, 2026
Weakness typeCWE-1236CWE-1236
How to fix
Update
- tendenci12.3.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| tendenci tendenci | 12.3.1 | — |
| tendenciPyPI | v < 12.3.2, v ≤ 12.3.1 | 12.3.2 |
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