CVE-2021-32809

Name	CVE-2021-32809
Description	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.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
Debian Bugs	992291

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
ckeditor (PTS)	buster	4.11.1+dfsg-1	vulnerable
	bullseye	4.16.0+dfsg-2	vulnerable
	bookworm, sid	4.19.1+dfsg-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
ckeditor	source	(unstable)	4.16.2+dfsg-1			992291

Notes

[bullseye] - ckeditor <no-dsa> (Minor issue)
[buster] - ckeditor <no-dsa> (Minor issue)
[stretch] - ckeditor <no-dsa> (Minor issue)
https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-7889-rm5j-hpgg
https://github.com/ckeditor/ckeditor4/commit/f6856decd5992b2b07945292416bb113d5f7ff82 (v4.16.2)
Introduced by https://github.com/ckeditor/ckeditor4/commit/ca0851c7a14f616a0c4cda905816aa87ca399efb (v4.5.2)