CVE-2020-27783 (Medium) detected in lxml-4.2.5-cp37-cp37m-manylinux1_x86_64.whl #91

Vulnerable Library - lxml-4.2.5-cp37-cp37m-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/7a/6b/a3d2d3c3075617edcbfc272d79281e812b1a94dab37923b1d06fdfe2e906/lxml-4.2.5-cp37-cp37m-manylinux1_x86_64.whl

Path to dependency file: /scrapers/requirements.txt

Path to vulnerable library: /scrapers/requirements.txt

Dependency Hierarchy:

• Scrapy-1.8.2-py2.py3-none-any.whl (Root Library)
  • ❌ lxml-4.2.5-cp37-cp37m-manylinux1_x86_64.whl (Vulnerable Library)

Found in HEAD commit: 697936f17c78abdd49ac6dfb47dc9193621ea970

Vulnerability Details

A XSS vulnerability was discovered in python-lxml's clean module. The module's parser didn't properly imitate browsers, which caused different behaviors between the sanitizer and the user's page. A remote attacker could exploit this flaw to run arbitrary HTML/JS code.

Publish Date: 2020-12-03

URL: CVE-2020-27783

CVSS 3 Score Details (6.1)

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: None

Suggested Fix

Type: Upgrade version

Origin: https://bugzilla.redhat.com/show_bug.cgi?id=1901633

Release Date: 2020-12-03

Fix Resolution: 4.6.1