CVE-2022-24729: Improper Input Validation

March 16, 2022 (updated November 7, 2023)

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.

References

ckeditor.com/cke4/release/CKEditor-4.18.0
github.com/ckeditor/ckeditor4/security/advisories/GHSA-f6rf-9m92-x2hh
nvd.nist.gov/vuln/detail/CVE-2022-24729
www.drupal.org/sa-core-2022-005

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