CVE-2020-36941
CRITICALKnockpy 4.1.1 - Code Injection
Title source: llmDescription
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.
Exploits (1)
Scores
CVSS v3
9.8
EPSS
0.0007
EPSS Percentile
21.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-1236
Status
published
Products (2)
guelfoweb/knock
4.1.1
guelfoweb/knockpy
4.1.1
Published
Jan 27, 2026
Tracked Since
Feb 18, 2026