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CVE-2022-24729

Description

CKEditor4 is an open source what-you-see-is-what-you-get HTML editor. CKEditor4 prior to version 4.18.0 contains a vulnerability in the `dialog` plugin. The vulnerability allows abuse of a dialog input validator regular expression, which can cause a significant performance drop resulting in a browser tab freeze. A patch is available in version 4.18.0. There are currently no known workarounds.

POC

Reference

- https://www.drupal.org/sa-core-2022-005

- https://www.oracle.com/security-alerts/cpujul2022.html

Github

- https://github.com/ARPSyndicate/cvemon

- https://github.com/karimhabush/cyberowl