A cross-site scripting (XSS) vulnerability in the Color Dialog plugin for CKEditor 4.15.0 allows remote attackers to run arbitrary web script after persuading a user to copy and paste crafted HTML code into one of editor inputs.
https://www.oracle.com/security-alerts/cpuoct2021.html
https://www.oracle.com/security-alerts/cpuApr2021.html
https://www.oracle.com//security-alerts/cpujul2021.html
https://ckeditor.com/ckeditor-4/download/
https://ckeditor.com/cke4/release/CKEditor-4.15.1
https://ckeditor.com/blog/CKEditor-4.15.1-with-a-security-patch-released/