ruby-advisory-db/gems/ckeditor/CVE-2021-33829.yml at 8430608f6140ed4a1030dab8595b47e995869e0b · jasnow/ruby-advisory-db · GitHub

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---
gem: ckeditor
cve: 2021-33829
ghsa: rgx6-rjj4-c388
url: https://ckeditor.com/blog/ckeditor-4.16.1-with-accessibility-enhancements/#improvements-for-comments-in-html-parser
title: ckeditor4 vulnerable to cross-site scripting
date: 2021-06-21
description: |
  A cross-site scripting (XSS) vulnerability in the HTML Data Processor
  in CKEditor 4 4.14.0 through 4.16.x before 4.16.1 allows remote attackers to inject
  executable JavaScript code through a crafted comment because `--!>` is mishandled.
cvss_v3: 6.1
unaffected_versions:
  - "< 5.1.1"
patched_versions:
  - ">= 5.1.2"
related:
  url:
    - https://nvd.nist.gov/vuln/detail/CVE-2021-33829
    - https://ckeditor.com/blog/ckeditor-4.16.1-with-accessibility-enhancements/#improvements-for-comments-in-html-parser
    - https://www.npmjs.com/package/ckeditor4
    - 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.drupal.org/sa-core-2021-003
    - https://lists.debian.org/debian-lts-announce/2021/11/msg00007.html
    - https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/CVE-2021-33829.yaml
    - https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2021-33829.yaml
    - https://github.com/advisories/GHSA-rgx6-rjj4-c388