Description
CKEditor4 is an open source what-you-see-is-what-you-get HTML editor. A vulnerability has been discovered in the core HTML processing module and may affect all plugins used by CKEditor 4 prior to version 4.18.0. The vulnerability allows someone to inject malformed HTML bypassing content sanitization, which could result in executing JavaScript code. This problem has been patched in version 4.18.0. There are currently no known workarounds.
Remediation
References
https://ckeditor.com/cke4/release/CKEditor-4.18.0
https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-4fc4-4p5g-6w89
https://github.com/ckeditor/ckeditor4/commit/d158413449692d920a778503502dcb22881bc949
https://www.drupal.org/sa-core-2022-005
https://www.oracle.com/security-alerts/cpujul2022.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WOZGMCYDB2OKKULFXZKM6V7JJW4ZZHJP/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VR76VBN5GW5QUBJFHVXRX36UZ6YTCMW6/