Bug 1219720 (CVE-2024-24815)

Summary:	VUL-0: CVE-2024-24815: python-django-ckeditor: attackers could inject malformed HTML content bypassing Advanced Content Filtering mechanism
Product:	[openSUSE] openSUSE Distribution	Reporter:	SMASH SMASH <smash_bz>
Component:	Other	Assignee:	Dirk Mueller <dmueller>
Status:	NEW ---	QA Contact:	Security Team bot <security-team>
Severity:	Normal
Priority:	P3 - Medium	CC:	andrea.mattiazzo
Version:	Leap 15.6
Target Milestone:	---
Hardware:	Other
OS:	Other
URL:	https://smash.suse.de/issue/393367/
Whiteboard:
Found By:	Security Response Team	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---

Description SMASH SMASH 2024-02-08 08:55:13 UTC

CKEditor4 is an open source what-you-see-is-what-you-get HTML editor. A cross-site scripting vulnerability has been discovered in the core HTML parsing module in versions of CKEditor4 prior to 4.24.0-lts. It may affect all editor instances that enabled full-page editing mode or enabled CDATA elements in Advanced Content Filtering configuration (defaults to `script` and `style` elements). The vulnerability allows attackers to inject malformed HTML content bypassing Advanced Content Filtering mechanism, which could result in executing JavaScript code. An attacker could abuse faulty CDATA content detection and use it to prepare an intentional attack on the editor. A fix is available in version 4.24.0-lts.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-24815
https://www.cve.org/CVERecord?id=CVE-2024-24815
https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_dtd.html#property-S-cdata
https://ckeditor.com/docs/ckeditor4/latest/features/fullpage.html)
https://ckeditor.com/docs/ckeditor4/latest/guide/dev_advanced_content_filter.html
https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-fq6h-4g8v-qqvm
https://ckeditor.com/docs/ckeditor4/latest/features/fullpage.html

Patch:
https://github.com/ckeditor/ckeditor4/commit/8ed1a3c93d0ae5f49f4ecff5738ab8a2972194cb

Comment 1 Andrea Mattiazzo 2024-02-08 09:01:55 UTC

python-django-ckeditor contains a vulnerable version of ckeditor

The fix required for this CVE is limited to the code inside core/htmlparser.js that is minified inside ckeditor.js

Tracking as affected:
- openSUSE:Backports:SLE-15-SP5/python-django-ckeditor
- openSUSE:Factory/python-django-ckeditor