ruby-advisory-db/gems/ckeditor/CVE-2021-41165.yml at b42455d31425c77e3adcbf9f6a152d06672bb3ce · rubysec/ruby-advisory-db · GitHub

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---
gem: ckeditor
cve: 2021-41165
ghsa: 7h26-63m7-qhf2
url: https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-7h26-63m7-qhf2
title: HTML comments vulnerability allowing to execute JavaScript code
date: 2021-11-17
description: |
  ### Affected packages
  The vulnerability has been discovered in the core HTML processing module and may affect all plugins used by CKEditor 4.

  ### Impact
  A potential vulnerability has been discovered in CKEditor 4 HTML processing core module. The vulnerability allowed to inject malformed comments HTML bypassing content sanitization, which could result in executing JavaScript code. It affects all users using the CKEditor 4 at version < 4.17.0.

  ### Patches
  The problem has been recognized and patched. The fix will be available in version 4.17.0.

  ### For more information
  Email us at [email protected] if you have any questions or comments about this advisory.

  ### Acknowledgements
  The CKEditor 4 team would like to thank William Bowling ([wbowling](https://github.com/wbowling)) for recognizing and reporting this vulnerability.
cvss_v3: 8.2
patched_versions:
  - ">= 5.1.2"
related:
  url:
    - https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-7h26-63m7-qhf2
    - https://github.com/ckeditor/ckeditor4/blob/major/CHANGES.md#ckeditor-417
    - https://nvd.nist.gov/vuln/detail/CVE-2021-41165
    - https://www.drupal.org/sa-core-2021-011
    - https://www.oracle.com/security-alerts/cpujan2022.html
    - https://www.oracle.com/security-alerts/cpuapr2022.html
    - https://www.oracle.com/security-alerts/cpujul2022.html
    - https://github.com/advisories/GHSA-7h26-63m7-qhf2