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1 vulnerability found for lxml by lxml

CVE-2021-43818 (GCVE-0-2021-43818)

Vulnerability from cvelistv5 – Published: 2021-12-13 18:05 – Updated: 2025-12-18 15:05
VLAI?
Title
HTML Cleaner allows crafted and SVG embedded scripts to pass through
Summary
lxml is a library for processing XML and HTML in the Python language. Prior to version 4.6.5, the HTML Cleaner in lxml.html lets certain crafted script content pass through, as well as script content in SVG files embedded using data URIs. Users that employ the HTML cleaner in a security relevant context should upgrade to lxml 4.6.5 to receive a patch. There are no known workarounds available.
CWE
  • CWE-74 - Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
Impacted products
Vendor Product Version
lxml lxml Affected: < 4.6.5
Create a notification for this product.
Show details on NVD website

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