Bug 1993485 (CVE-2021-32809)

Summary:	CVE-2021-32809 ckeditor: clipboard feature vulnerability allowing to inject arbitrary HTML into the editor using paste functionality
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	orion, shawn
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
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Fixed In Version:		Doc Type:	If docs needed, set a value
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Last Closed:	2021-08-13 19:28:10 UTC	Type:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1993486, 1993487
Bug Blocks:

Description Guilherme de Almeida Suckevicz 2021-08-13 13:32:57 UTC

ckeditor is an open source WYSIWYG HTML editor with rich content support. A potential vulnerability has been discovered in CKEditor 4 [Clipboard](https://ckeditor.com/cke4/addon/clipboard) package. The vulnerability allowed to abuse paste functionality using malformed HTML, which could result in injecting arbitrary HTML into the editor. It affects all users using the CKEditor 4 plugins listed above at version >= 4.5.2. The problem has been recognized and patched. The fix will be available in version 4.16.2.

Reference:
https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-7889-rm5j-hpgg

Comment 1 Guilherme de Almeida Suckevicz 2021-08-13 13:33:16 UTC

Created ckeditor tracking bugs for this issue:

Affects: epel-7 [bug 1993487]
Affects: fedora-all [bug 1993486]

Comment 2 Product Security DevOps Team 2021-08-13 19:28:10 UTC

This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.