CVE-2021-43818 (High) detected in lxml-4.6.2-cp27-cp27mu-manylinux1_x86_64.whl

[mend-bolt-for-github]

CVE-2021-43818 - High Severity Vulnerability

Vulnerable Library - lxml-4.6.2-cp27-cp27mu-manylinux1_x86_64.whl

Powerful and Pythonic XML processing library combining libxml2/libxslt with the ElementTree API.

Library home page: https://files.pythonhosted.org/packages/15/55/ddcb9b3428c94aa2794f248897418178ee812288688f9cc8ec5147a4be47/lxml-4.6.2-cp27-cp27mu-manylinux1_x86_64.whl

Path to dependency file: /tmp/ws-scm/scrapy-pipelines

Path to vulnerable library: /tmp/ws-scm/scrapy-pipelines

Dependency Hierarchy:

• Scrapy-1.8.0-py2.py3-none-any.whl (Root Library)
  • ❌ lxml-4.6.2-cp27-cp27mu-manylinux1_x86_64.whl (Vulnerable Library)

Found in base branch: master

Vulnerability Details

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.

Publish Date: 2021-12-13

URL: CVE-2021-43818

CVSS 3 Score Details (7.1)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: Required
  • Scope: Changed
• Impact Metrics:
  • Confidentiality Impact: Low
  • Integrity Impact: Low
  • Availability Impact: Low

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: GHSA-55x5-fj6c-h6m8

Release Date: 2021-12-13

Fix Resolution: lxml - 4.6.5

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