Bug 1993482 (CVE-2021-32808)

Summary: CVE-2021-32808 ckeditor: widget feature vulnerability allowing to execute JavaScript code using undo functionality
Product: [Other] Security Response Reporter: Guilherme de Almeida Suckevicz <gsuckevi>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED UPSTREAM QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: orion, shawn
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Last Closed: 2021-08-13 13:28:10 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Bug Depends On: 1993483, 1993484    
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Description Guilherme de Almeida Suckevicz 2021-08-13 13:25:52 UTC 
ckeditor is an open source WYSIWYG HTML editor with rich content support. A vulnerability has been discovered in the clipboard Widget plugin if used alongside the undo feature. The vulnerability allows a user to abuse undo functionality using malformed widget HTML, which could result in executing JavaScript code. It affects all users using the CKEditor 4 plugins listed above at version >= 4.13.0. 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-6226-h7ff-ch6c
Comment 1 Guilherme de Almeida Suckevicz 2021-08-13 13:26:09 UTC 
Created ckeditor tracking bugs for this issue:

Affects: epel-7 [bug 1993484]
Affects: fedora-all [bug 1993483]
Comment 2 Product Security DevOps Team 2021-08-13 13:28:10 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.