quickentity-editor-next is an open source, system local, video game asset editor. In affected versions HTML tags in entity names are not sanitised (XSS vulnerability). Allows arbitrary code execution within the browser sandbox, among other things, simply from loading a file containing a script tag in any entity name. This issue has been patched in version 1.28.1 of the application. Users are advised to upgrade. There are no known workarounds for this vulnerability.