| 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, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, 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) | jessie, jessie (lts) | 4.4.4+dfsg1-3+deb8u2 | fixed |
| stretch (security) | 4.5.7+dfsg-2+deb9u1 | vulnerable |
| stretch (lts), stretch | 4.5.7+dfsg-2+deb9u2 | vulnerable |
| buster | 4.11.1+dfsg-1 | vulnerable |
| bullseye | 4.16.0+dfsg-2 | vulnerable |
| bookworm | 4.19.1+dfsg-1 | fixed |
| sid, trixie | 4.22.1+dfsg1-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| ckeditor | source | jessie | (not affected) | | | |
| 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)
[jessie] - ckeditor <not-affected> (Vulnerable code introduced later)