ruby-advisory-db/gems/ckeditor/CVE-2021-32808.yml at 8430608f6140ed4a1030dab8595b47e995869e0b · jasnow/ruby-advisory-db · GitHub

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---
gem: ckeditor
cve: 2021-32808
ghsa: 6226-h7ff-ch6c
url: https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-6226-h7ff-ch6c
title: Widget feature vulnerability allowing to execute JavaScript code using undo
  functionality
date: 2021-08-23
description: |
  ### Affected packages
  The vulnerability has been discovered in [Widget](https://ckeditor.com/cke4/addon/clipboard) plugin if used alongside [Undo](https://ckeditor.com/cke4/addon/undo) feature.

  ### Impact
  A potential vulnerability has been discovered in CKEditor 4 [Widget](https://ckeditor.com/cke4/addon/widget) package. The vulnerability allowed to abuse undo functionality using malformed widget HTML, which could result in executing JavaScript code. It affects all users using the CKEditor 4 plugins listed above at version >= 4.13.0.

  ### Patches
  The problem has been recognized and patched. The fix will be available in version 4.16.2.

  ### 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 Anton Subbotin ([skavans](https://github.com/skavans)) for recognizing and reporting this vulnerability.
cvss_v3: 7.6
unaffected_versions:
  - "< 5.1.2"
patched_versions:
  - ">= 5.1.2"
related:
  url:
    - https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-6226-h7ff-ch6c
    - https://nvd.nist.gov/vuln/detail/CVE-2021-32808
    - https://github.com/ckeditor/ckeditor4/releases/tag/4.16.2
    - https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NYA354LJP47KCVJMTUO77ZCX3ZK42G3T/
    - https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UVOYN2WKDPLKCNILIGEZM236ABQASLGW/
    - https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WAGNWHFIQAVCP537KFFS2A2GDG66J7XD/
    - https://www.oracle.com/security-alerts/cpuoct2021.html
    - https://www.oracle.com/security-alerts/cpujan2022.html
    - https://github.com/advisories/GHSA-6226-h7ff-ch6c