CVE-2022-23134: Zabbix Frontend Improper Access Control Vulnerability

Medium severity, CVSS 5.3. Actively exploited: in CISA KEV since 2022-02-22. EPSS: 95.3% chance of exploitation in the next 30 days.

After the initial setup process, some steps of setup.php file are reachable not only by super-administrators, but by unauthenticated users as well. Malicious actor can pass step checks and potentially change the configuration of Zabbix Frontend.

Affected products

• Debian Debian Linux: version 9.0 only
• Fedoraproject Fedora: version 34 only; version 35 only
• Zabbix Zabbix: from 5.4.0, up to and including 5.4.8; version 6.0.0 only

Published 2022-01-13. Last modified 2026-06-17.