CVE-2021-23654

CriticalCVSS 9.8/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-1236

Affected software

Vendor	Product	Versions
n/a	html-to-csv	< unspecified

References

https://github.com/hanwentao/html2csv/blob/master/html2csv/converter.pyExploit, Third Party Advisory
https://snyk.io/vuln/SNYK-PYTHON-HTMLTOCSV-1582784Exploit, Third Party Advisory
https://github.com/hanwentao/html2csv/blob/master/html2csv/converter.pyExploit, Third Party Advisory
https://snyk.io/vuln/SNYK-PYTHON-HTMLTOCSV-1582784Exploit, Third Party Advisory

Timeline

Published: Nov 26, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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