CVE-2026-23926: Zabbix

Medium severity, CVSS 6.8. EPSS: 0.3% chance of exploitation in the next 30 days.

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.

Affected products

• Zabbix Zabbix: from 7.0.0, before 7.0.24 (fixed in 7.0.24); from 7.4.0, before 7.4.8 (fixed in 7.4.8)

Published 2026-05-06. Last modified 2026-09-18.