GitHub Advisoryadvisory · npm, Packagist
GHSA-rgx6-rjj4-c388 ckeditor4 vulnerable to cross-site scripting
MEDIUM
Official page ↗
- Aliases
- CVE-2021-33829
- Ecosystem
- npm, Packagist
- Packages
- ckeditor4, drupal/core, drupal/drupal
- Severity
- Moderate
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- Weaknesses
- CWE-79
- Reviewed
- 2021-06-14
Affected packages
• npm ckeditor4: >= 4.14.0, < 4.16.1 → fixed in 4.16.1
• Packagist drupal/core: >= 7.0.0, < 7.80 → fixed in 7.80
• Packagist drupal/core: >= 8.0.0, < 8.9.16 → fixed in 8.9.16
• Packagist drupal/core: >= 9.0.0, < 9.0.14 → fixed in 9.0.14
• Packagist drupal/core: >= 9.1.0, < 9.1.9 → fixed in 9.1.9
• Packagist drupal/drupal: >= 7.0.0, < 7.80 → fixed in 7.80
• Packagist drupal/drupal: >= 8.0.0, < 8.9.16 → fixed in 8.9.16
• Packagist drupal/drupal: >= 9.0.0, < 9.0.14 → fixed in 9.0.14
• Packagist drupal/drupal: >= 9.1.0, < 9.1.9 → fixed in 9.1.9
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.
Related
Alias · CVE (1)
- CVE-2021-33829 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… vulnerability
Weakness · CWE (1)
- CWE-79 Improper Neutralization of Input During Web Page Generation weakness
References
- https://nvd.nist.gov/vuln/detail/CVE-2021-33829 advisory
- https://ckeditor.com/blog/ckeditor-4.16.1-with-accessibility-enhancements/#improvements-for-comments-in-html-parser web
- https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/CVE-2021-33829.yaml web
- https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2021-33829.yaml web
- https://github.com/ckeditor/ckeditor4 package
- https://lists.debian.org/debian-lts-announce/2021/11/msg00007.html web
- https://lists.fedoraproject.org/archives/list/[email protected]/message/NYA354LJP47KCVJMTUO77ZCX3ZK42G3T web
- https://lists.fedoraproject.org/archives/list/[email protected]/message/UVOYN2WKDPLKCNILIGEZM236ABQASLGW web
- https://lists.fedoraproject.org/archives/list/[email protected]/message/WAGNWHFIQAVCP537KFFS2A2GDG66J7XD web
- https://www.drupal.org/sa-core-2021-003 web
- https://www.npmjs.com/package/ckeditor4 web