Cross-site Scripting (XSS) Affecting python-lxml-debuginfo package, versions <0:3.2.1-4.amzn2.0.3


Severity

Recommended
0.0
medium
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.21% (60th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Cross-site Scripting (XSS) vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-AMZN2-PYTHONLXMLDEBUGINFO-1700539
  • published27 Sept 2021
  • disclosed3 Dec 2020

Introduced: 3 Dec 2020

CVE-2020-27783  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 python-lxml-debuginfo to version 0:3.2.1-4.amzn2.0.3 or higher.
This issue was patched in ALAS2-2021-1666.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python-lxml-debuginfo package and not the python-lxml-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

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.

CVSS Scores

version 3.1