An authenticated user can create a link with reflected Javascript code inside it for the discovery page and send it to other users. The payload can be executed only with a known CSRF token value of the victim, which is changed periodically and is difficult to predict.
https://support.zabbix.com/browse/ZBX-21306
https://lists.debian.org/debian-lts-announce/2023/08/msg00027.html
https://lists.debian.org/debian-lts-announce/2023/04/msg00013.html