CVE-2021-37695

NameCVE-2021-37695
Descriptionckeditor is an open source WYSIWYG HTML editor with rich content support. A potential vulnerability has been discovered in CKEditor 4 [Fake Objects](https://ckeditor.com/cke4/addon/fakeobjects) package. The vulnerability allowed to inject malformed Fake Objects HTML, which could result in executing JavaScript code. It affects all users using the CKEditor 4 plugins listed above at version < 4.16.2. The problem has been recognized and patched. The fix will be available in version 4.16.2.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-2813-1, ELA-513-1
Debian Bugs992290, 1015217

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
ckeditor (PTS)jessie, jessie (lts)4.4.4+dfsg1-3+deb8u1fixed
stretch (security), stretch (lts), stretch4.5.7+dfsg-2+deb9u1fixed
buster4.11.1+dfsg-1vulnerable
bullseye4.16.0+dfsg-2vulnerable
sid, bookworm4.19.1+dfsg-1fixed
ckeditor3 (PTS)stretch3.6.6.1+dfsg-1vulnerable
buster3.6.6.1+dfsg-3vulnerable
sid, bullseye, bookworm3.6.6.1+dfsg-7vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
ckeditorsourcejessie4.4.4+dfsg1-3+deb8u1ELA-513-1
ckeditorsourcestretch4.5.7+dfsg-2+deb9u1DLA-2813-1
ckeditorsource(unstable)4.16.2+dfsg-1992290
ckeditor3sourcestretch(unfixed)end-of-life
ckeditor3sourcebuster(unfixed)end-of-life
ckeditor3source(unstable)(unfixed)1015217

Notes

[bullseye] - ckeditor <no-dsa> (Minor issue)
[buster] - ckeditor <no-dsa> (Minor issue)
[bullseye] - ckeditor3 <no-dsa> (Minor issue)
[buster] - ckeditor3 <end-of-life> (No longer supported in LTS)
[stretch] - ckeditor3 <end-of-life> (EOL'd for stretch)
https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-m94c-37g6-cjhc
https://github.com/ckeditor/ckeditor4/commit/de3c001540715f9c3801aaa38a1917de46cfcf58

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