CVE-2024-43411

NameCVE-2024-43411
DescriptionCKEditor4 is an open source what-you-see-is-what-you-get HTML editor. A theoretical vulnerability has been identified in CKEditor 4.22 (and above). In a highly unlikely scenario where an attacker gains control over the https://cke4.ckeditor.com domain, they could potentially execute an attack on CKEditor 4 instances. The issue impacts only editor instances with enabled version notifications. Please note that this feature is disabled by default in all CKEditor 4 LTS versions. Therefore, if you use CKEditor 4 LTS, it is highly unlikely that you are affected by this vulnerability. If you are unsure, please contact us. The fix is available in version 4.25.0-lts.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
ckeditor (PTS)bullseye4.16.0+dfsg-2fixed
bookworm4.19.1+dfsg-1fixed
sid, trixie4.22.1+dfsg1-2vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
ckeditorsourcebullseye(not affected)
ckeditorsourcebookworm(not affected)
ckeditorsource(unstable)(unfixed)unimportant

Notes

[bookworm] - ckeditor <not-affected> (Vulnerable code not present)
[bullseye] - ckeditor <not-affected> (Vulnerable code not present)
Introduced after: https://github.com/ckeditor/ckeditor4/commit/b7b2f4748be71eb01c2f99afefaff002f5061a3e (4.22.0)
Fixed by: https://github.com/ckeditor/ckeditor4/commit/a29e4fd5904da5f2d29dc77da9baac76a14ca266 (4.25.0-lts)
Fixed by: https://github.com/ckeditor/ckeditor4/commit/a757c3da466ca01e76505af4b446b3dcde0ae9f5 (4.25.0-lts)
Fixed by: https://github.com/ckeditor/ckeditor4/commit/e35bbadc15e2ae76e39b3fc963b851ecc0da4b28 (4.25.0-lts)
Negligible security impact; feature disabled by default.

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