ruby-advisory-db/gems/ckeditor/CVE-2021-41164.yml at 8430608f6140ed4a1030dab8595b47e995869e0b · jasnow/ruby-advisory-db · GitHub

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---
gem: ckeditor
cve: 2021-41164
ghsa: pvmx-g8h5-cprj
url: https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-pvmx-g8h5-cprj
title: Advanced Content Filter (ACF) vulnerability allowing to execute JavaScript
  code using malformed HTML
date: 2021-11-17
description: |
  ### Affected packages
  The vulnerability has been discovered in the Advanced Content Filter (ACF) module and may affect all plugins used by CKEditor 4.

  ### Impact
  A potential vulnerability has been discovered in CKEditor 4 Advanced Content Filter (ACF) core module. The vulnerability allowed to inject malformed 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 security@cksource.com if you have any questions or comments about this advisory.

  ### Acknowledgements
  The CKEditor 4 team would like to thank Maurice Dauer ([laytonctf](https://twitter.com/laytonctf)) 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-pvmx-g8h5-cprj
    - https://github.com/ckeditor/ckeditor4/blob/major/CHANGES.md#ckeditor-417
    - https://nvd.nist.gov/vuln/detail/CVE-2021-41164
    - 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://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WOZGMCYDB2OKKULFXZKM6V7JJW4ZZHJP/
    - https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VR76VBN5GW5QUBJFHVXRX36UZ6YTCMW6/
    - https://github.com/advisories/GHSA-pvmx-g8h5-cprj