CVE-2020-36941
Knockpy 4.1.1 - CSV Injection
- State
- Published
- Severity
- 5.3 Medium
- Published
- Jan 27, 2026
- Updated
- Mar 5, 2026
- Reserved
- Jan 25, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 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 | VulnCheck |
| 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-1236 Improper Neutralization of Formula Elements in a CSV File
Affected Products
| Product | Versions |
|---|---|
knockguelfoweb |
|
References
- ExploitDB-49342exploit
- Knockpy GitHub Repositoryproduct
- VulnCheck Advisory: Knockpy 4.1.1 - CSV Injectionthird-party-advisory
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