An authenticated (non-super) administrator can create a maintenance period with a JavaScript payload that is executed by any user that opens tooltip for that maintenance period in the Host navigator widget. This can allow the attacker to perform unauthorized actions depending on which user opens the tooltip.

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Advisories

No advisories yet.

Fixes

Solution

Update the affected components to their respective fixed versions.


Workaround

Disable the Host navigator widget via Administration -> General -> Modules.

History

Wed, 06 May 2026 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 06 May 2026 09:15:00 +0000

Type Values Removed Values Added
First Time appeared Zabbix
Zabbix zabbix
Vendors & Products Zabbix
Zabbix zabbix

Wed, 06 May 2026 07:30:00 +0000

Type Values Removed Values Added
Description An authenticated (non-super) administrator can create a maintenance period with a JavaScript payload that is executed by any user that opens tooltip for that maintenance period in the Host navigator widget. This can allow the attacker to perform unauthorized actions depending on which user opens the tooltip.
Title Stored XSS vulnerability in Host navigator widget maintenance tooltip
Weaknesses CWE-79
References
Metrics cvssV4_0

{'score': 7.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Zabbix

Published:

Updated: 2026-05-06T12:59:26.878Z

Reserved: 2026-01-19T14:02:54.327Z

Link: CVE-2026-23926

cve-icon Vulnrichment

Updated: 2026-05-06T12:59:22.895Z

cve-icon NVD

Status : Received

Published: 2026-05-06T08:16:01.837

Modified: 2026-05-06T08:16:01.837

Link: CVE-2026-23926

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-06T09:00:09Z

Weaknesses