CVE-2022-23131

In the case of instances where the SAML SSO authentication is enabled
(non-default), session data can be modified by a malicious actor, because a
user login stored in the session was not verified. Malicious
unauthenticated actor may exploit this issue to escalate privileges and
gain admin access to Zabbix Frontend. To perform the attack, SAML
authentication is required to be enabled and the actor has to know the
username of Zabbix user (or use the guest account, which is disabled by
default).

Bugs

• <https://support.zabbix.com/browse/ZBX-20350&gt;