CVE-2022-23131

CriticalCVSS 9.8/10Known exploited (CISA KEV)Last modified Jun 17, 2026

Description

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).

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-290

Affected software

Vendor	Product	Versions
Zabbix	Frontend	5.4.0 - 5.4.8

References

https://support.zabbix.com/browse/ZBX-20350Issue Tracking, Patch, Vendor Advisory
https://support.zabbix.com/browse/ZBX-20350Issue Tracking, Patch, Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-23131US Government Resource

Timeline

Published: Jan 13, 2022
Last modified: Jun 17, 2026
Added to CISA KEV: Feb 22, 2022
NVD status: Analyzed

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