GHSA-wpvm-wqr4-p7cw

Inclusion of Functionality from Untrusted Control Sphere in CKEditor 4

Source: GitHub Advisory Database (reviewed) Moderate CVE-2021-26272

Packages

Ecosystem	Package	Affected	Fixed in
npm	ckeditor4	< 4.16.0	4.16.0

Details

As written in the advisory (Markdown source, shown as plain text).

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).

References

External links from the advisory. They lead to third-party sites.

https://nvd.nist.gov/vuln/detail/CVE-2021-26272 advisory
https://ckeditor.com/blog/CKEditor-4.16-with-improved-image-pasting-High-Contrast-support-and-a-new-color-API/#security-comes-first web
https://github.com/ckeditor/ckeditor4 package
https://github.com/ckeditor/ckeditor4/blob/major/CHANGES.md#ckeditor-416 web
https://www.oracle.com//security-alerts/cpujul2021.html web
https://www.oracle.com/security-alerts/cpujan2022.html web
https://www.oracle.com/security-alerts/cpuoct2021.html web