CVE-2022-43515 - CVE House
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Status published Medium CVE-2022-43515

X-Forwarded-For header is active by default causes access to Zabbix sites in maintenance mode

Vulnerability Description

Zabbix Frontend provides a feature that allows admins to maintain the installation and ensure that only certain IP addresses can access it. In this way, any user will not be able to access the Zabbix Frontend while it is being maintained and possible sensitive data will be prevented from being disclosed. An attacker can bypass this protection and access the instance using IP address not listed in the defined range.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • osman1337

References

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Affected Vendor

Affected Software

Frontend
Vulnerable Versions:
4.0.0-4.0.44, 5.0.0-5.0.29, 6.0.0-6.0.9, 6.2.0-6.2.4, 5.0.30rc1, 6.0.11rc1, 6.2.5rc1

Timeline

Official Publish: December 12th, 2022
Last Modified: November 3rd, 2025
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Weaknesses (CWE)

CWE-20

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application
Initial Access
T1059 Command and Scripting Interpreter
Execution
T1068 Exploitation for Privilege Escalation
Privilege Escalation
T1213 Data from Information Repositories
Collection
T1565.002 Stored Data Manipulation
Impact