ckeditor-wordcount-plugin is an open source WordCount Plugin for CKEditor. It has been discovered that the `ckeditor-wordcount-plugin` plugin for CKEditor4 is susceptible to cross-site scripting when switching to the source code mode. This issue has been addressed in version 1.17.12 of the `ckeditor-wordcount-plugin` plugin and users are advised to upgrade. There are no known workarounds for this vulnerability.
https://typo3.org/security/advisory/typo3-core-sa-2023-004
https://github.com/w8tcha/CKEditor-WordCount-Plugin/security/advisories/GHSA-q9w4-w667-qqj4
https://github.com/w8tcha/CKEditor-WordCount-Plugin/commit/a4b154bdf35b3465320136fcb078f196b437c2f1
https://github.com/w8tcha/CKEditor-WordCount-Plugin/commit/0f03b3e5b7c1409998a13aba3a95396e6fa349d8
https://github.com/TYPO3/typo3/security/advisories/GHSA-m8fw-p3cr-6jqc