MediumGHSA-wpvm-wqr4-p7cwCVE-2021-26272

Inclusion of Functionality from Untrusted Control Sphere in CKEditor 4

Published 13 Oct 2021 · Updated 8 Nov 2023

Affected package

Affected: <4.16.0
Fixed in: 4.16.0

Update to the fixed version for your release line, for example:npm install ckeditor4@4.16.0

Details

It was possible to execute a ReDoS-type attack inside CKEditor 4 before 4.16 by persuading a victim to paste crafted URL-like text into the editor, and then press Enter or Space (in the Autolink plugin).

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References

Advisorynvd.nist.gov/vuln/detail/CVE-2021-26272
Linkckeditor.com/blog/CKEditor-4.16-with-improved-image-pasting-High-Contrast-support-and-a-new-color-API/#security-comes-first
Packagegithub.com/ckeditor/ckeditor4
Linkgithub.com/ckeditor/ckeditor4/blob/major/CHANGES.md#ckeditor-416
Linkwww.oracle.com//security-alerts/cpujul2021.html
Linkwww.oracle.com/security-alerts/cpujan2022.html
Linkwww.oracle.com/security-alerts/cpuoct2021.html

Advisory data from OSV.dev (opens OSV.dev in a new tab), refreshed daily.