GHSA-rgx6-rjj4-c388
ckeditor4 vulnerable to cross-site scripting
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | ckeditor4 | >= 4.14.0, < 4.16.1 | 4.16.1 |
| Packagist | drupal/core | >= 7.0.0, < 7.80 | 7.80 |
| Packagist | drupal/core | >= 8.0.0, < 8.9.16 | 8.9.16 |
| Packagist | drupal/core | >= 9.0.0, < 9.0.14 | 9.0.14 |
| Packagist | drupal/core | >= 9.1.0, < 9.1.9 | 9.1.9 |
| Packagist | drupal/drupal | >= 7.0.0, < 7.80 | 7.80 |
| Packagist | drupal/drupal | >= 8.0.0, < 8.9.16 | 8.9.16 |
| Packagist | drupal/drupal | >= 9.0.0, < 9.0.14 | 9.0.14 |
| Packagist | drupal/drupal | >= 9.1.0, < 9.1.9 | 9.1.9 |
Details
As written in the advisory (Markdown source, shown as plain text).
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.
References
External links from the advisory. They lead to third-party sites.
- 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://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/ckeditor/ckeditor4
- https://lists.debian.org/debian-lts-announce/2021/11/msg00007.html
- https://lists.fedoraproject.org/archives/list/[email protected]/message/NYA354LJP47KCVJMTUO77ZCX3ZK42G3T
- https://lists.fedoraproject.org/archives/list/[email protected]/message/UVOYN2WKDPLKCNILIGEZM236ABQASLGW
- https://lists.fedoraproject.org/archives/list/[email protected]/message/WAGNWHFIQAVCP537KFFS2A2GDG66J7XD
- https://www.drupal.org/sa-core-2021-003
- https://www.npmjs.com/package/ckeditor4