{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-36941 exists.","fix":"No fix has been published for CVE-2020-36941 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-36941 is a medium-severity code injection vulnerability in guelfoweb knock, published on 27 Jan 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2020-36941 and fix it if it is affected.\n\nWhat it is: CVE-2020-36941 is a medium-severity code injection vulnerability in guelfoweb knock, published on 27 Jan 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-36941 exists.\n\nAffected product: guelfoweb knock. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2020-36941/ (Markdown: https://insights.sbomify.com/CVE-2020-36941/index.md)","id":"CVE-2020-36941","markdown":"https://insights.sbomify.com/CVE-2020-36941/index.md","name":"CVE-2020-36941","record":{"aliases":["GHSA-x2h4-97pf-v2rr"],"analysis":{"component_type":"developer_tool","fix_type":"no_fix_stated","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Knockpy subdomain scanner","requires_auth":"none","summary":"Attackers can inject malicious formulas into CSV reports via unfiltered server headers, leading to code execution when the file is opened in spreadsheet software.","user_interaction":"required","vuln_class":"code_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[{"product":"knockpy","vendor":"guelfoweb"}],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"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","version":"4.0"},"cwes":[{"id":"CWE-1236","name":"Improper Neutralization of Formula Elements in a CSV File"}],"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.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":null,"headline":"Knockpy 4.1.1 - CSV Injection","id":"CVE-2020-36941","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"code_injection","year":"2020"},"n_packages":0,"n_references":3,"next":{"headline":"Victor CMS 1.0 - File Upload To RCE","id":"CVE-2020-36942"},"packages":[],"prev":{"headline":"Easy CD \u0026 DVD Cover Creator 4.13 - Denial of Service","id":"CVE-2020-36940"},"products":["knock"],"published":"2026-01-27","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-03-05","vendors":["guelfoweb"]},"summary":"Attackers can inject malicious formulas into CSV reports via unfiltered server headers, leading to code execution when the file is opened in spreadsheet software.","url":"https://insights.sbomify.com/CVE-2020-36941/"}