ckeditor-plugin-openlink is a plugin for the CKEditor JavaScript text editor that extends the context menu with a possibility to open a link in a new tab. A vulnerability in versions of the plugin prior to 1.0.7 allowed a user to execute JavaScript code by abusing the link href attribute. The fix is available starting with version 1.0.7.
https://github.com/mlewand/ckeditor-plugin-openlink/security/advisories/GHSA-qj47-6x6q-m3c9
https://github.com/mlewand/ckeditor-plugin-openlink/commit/402391fdd4d9cfd079031372f9caebbf54993ffb