Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-wh5w-82f3-wrxh. This link is maintained to preserve external references.
Original Description A Cross-Site scripting vulnerability has been found in CKSource CKEditor affecting versions 4.15.1 and earlier. An attacker could send malicious javascript code through the /ckeditor/samples/old/ajax.html file and retrieve an authorized user's information.