Cross-site Scripting (XSS) Affecting python39:3.9/python39-pysocks package, versions <0:1.7.1-4.module+el8.4.0+9822+20bf1249


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.23% (63rd percentile)

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  • Snyk IDSNYK-RHEL8-PYTHON39-4129643
  • published26 Jul 2021
  • disclosed21 Mar 2021

Introduced: 21 Mar 2021

CVE-2021-28957  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

Upgrade RHEL:8 python39:3.9/python39-pysocks to version 0:1.7.1-4.module+el8.4.0+9822+20bf1249 or higher.
This issue was patched in RHSA-2021:4160.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python39:3.9/python39-pysocks package and not the python39:3.9/python39-pysocks package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

An XSS vulnerability was discovered in python-lxml's clean module versions before 4.6.3. When disabling the safe_attrs_only and forms arguments, the Cleaner class does not remove the formaction attribute allowing for JS to bypass the sanitizer. A remote attacker could exploit this flaw to run arbitrary JS code on users who interact with incorrectly sanitized HTML. This issue is patched in lxml 4.6.3.

CVSS Scores

version 3.1