{"id":"CVE-2021-23654","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-23654","generatedAt":"2026-10-27T20:22:50.864Z","title":"Through this a malicious actor can embed or generate a malicious link or execute commands via CSV files.","description":"This affects all versions of package html-to-csv. When there is a formula embedded in a HTML page, it gets accepted without any validation and the same would be pushed while converting it into a CSV file. Through this a malicious actor can embed or generate a malicious link or execute commands via CSV files.","published":"2021-11-26T20:15:07.000Z","lastModified":"2026-06-17T03:38:51.000Z","status":"Modified","sourceIdentifier":"report@snyk.io","cvss":{"version":"3.1","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-1236"],"affected":["html-to-csv project/html-to-csv"],"epss":{"score":0.01245,"percentile":0.69086,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (1.24%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/hanwentao/html2csv/blob/master/html2csv/converter.py","tags":["Exploit","Third Party Advisory"],"source":"report@snyk.io"},{"url":"https://snyk.io/vuln/SNYK-PYTHON-HTMLTOCSV-1582784","tags":["Exploit","Third Party Advisory"],"source":"report@snyk.io"},{"url":"https://github.com/hanwentao/html2csv/blob/master/html2csv/converter.py","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://snyk.io/vuln/SNYK-PYTHON-HTMLTOCSV-1582784","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-23654","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}