CVE-2020-36941

5.3 mediumEPSS 0.6%

Medium (5.3) in guelfoweb knockpy. EPSS 0.6% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

5.3 medium

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

CVSS 3.1

9.8 critical

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

EPSS: 0.6% chance of exploitation in the next 30 days; higher than 48% of CVEs (scores of 2026-10-31)
CWE: CWE-1236
Published: 2026-01-27
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

guelfoweb:knockpy

References

https://github.com/guelfoweb/knock
https://www.exploit-db.com/exploits/49342
https://www.vulncheck.com/advisories/knockpy-csv-injection
https://github.com/guelfoweb/knock

Check your stack JSON