CVE-2020-36941

CRITICAL

9.8

Description

Knockpy 4.1.1 contains a CSV injection vulnerability that allows attackers to inject malicious formulas into CSV reports through unfiltered server headers. Attackers can manipulate server response headers to include spreadsheet formulas that will execute when the CSV is opened in spreadsheet applications.

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published1/27/2026

Last Modified3/24/2026

Sourcenvd

Honeypot Sightings0

Affected Products

guelfoweb:knockpy

Weaknesses (CWE)

CWE-1236

References

https://github.com/guelfoweb/knock(disclosure@vulncheck.com)

https://www.exploit-db.com/exploits/49342(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/knockpy-csv-injection(disclosure@vulncheck.com)

https://github.com/guelfoweb/knock(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

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