Guelfoweb vulnerabilities

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Published CVEs affecting Guelfoweb products: 1 record(s), with severity, exploitation and fixes.

Knockpy 1 Knock 1

Exploited only (KEV) →

CVE-2020-36941 Critical · 9.8 CWE-1236 Jan 27, 2026

Knockpy 4.1.1 - CSV Injection

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.