An authenticated user can create a hosts group from the configuration with XSS payload, which will be available for other users. When XSS is stored by an authenticated malicious actor and other users try to search for groups during new host creation, the XSS payload will fire and the actor can steal session cookies and perform session hijacking to impersonate users or take over their accounts.
Created zabbix tracking bugs for this issue:
Affects: fedora-all [bug 2040759]
Created zabbix40 tracking bugs for this issue:
Affects: epel-all [bug 2040760]
Created zabbix50 tracking bugs for this issue:
Affects: epel-all [bug 2040761]
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.