CVE-2022-23131

Zabbix Frontend Authentication Bypass Vulnerability

n/a

CVSS

95.7%

EPSS (exploit prob.)

99.9%

EPSS percentile

Yes

Actively exploited

Ransomware use

2022-02-22

Added

MITRE ATT&CK techniques

How this vulnerability maps to adversary behaviour, from the Center for Threat-Informed Defense's public CVE→ATT&CK mappings. Use it to check whether your detections already cover the technique.

Technique	Name	Relationship
T1190	Exploit Public-Facing Application	exploitation technique
T1548	Abuse Elevation Control Mechanism	primary impact
T1059	Command and Scripting Interpreter	secondary impact
T1078	Valid Accounts	secondary impact

Summary

Unsafe client-side session storage leading to authentication bypass/instance takeover via Zabbix Frontend with configured SAML.

Affected software

Vendor: Zabbix · Product: Frontend

Weakness types (CWE):

What to do

This vulnerability appears in CISA's Known Exploited Vulnerabilities catalog, meaning it is being exploited in the wild. Prioritize patching affected systems and verify exposure across your estate.

Related vulnerabilities in Zabbix

CVE	Name	EPSS	Exploited
CVE-2022-23134	Zabbix Frontend Improper Access Control Vulnerability	84.7%	Yes

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