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

Severity: medium (CVSS 5.3 v3.1)
Exploited in the wild: yes — in CISA KEV since 2022-02-22
EPSS: 95.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2022-01-13 · updated 2026-06-17
Weakness: CWE-284

Description

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 Linux: 9.0
Fedoraproject Fedora: 34, 35
Zabbix: from 5.4.0 through 5.4.8; 6.0.0-alpha1, 6.0.0-alpha2, 6.0.0-alpha3, 6.0.0-alpha4, 6.0.0-alpha5, 6.0.0-alpha6 (+2)

References

https://lists.debian.org/debian-lts-announce/2022/02/msg00008.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6SZYHXINBKCY42ITFSNCYE7KCSF33VRA/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VB6W556GVXOKUYTASTDGL3AI7S3SJHX7/
https://support.zabbix.com/browse/ZBX-20384
https://lists.debian.org/debian-lts-announce/2022/02/msg00008.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6SZYHXINBKCY42ITFSNCYE7KCSF33VRA/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VB6W556GVXOKUYTASTDGL3AI7S3SJHX7/
https://support.zabbix.com/browse/ZBX-20384
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-23134

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