Bug 2466968 (CVE-2026-23926) - CVE-2026-23926 zabbix: Zabbix: Cross-Site Scripting via malicious script in maintenance period tooltip
Summary: CVE-2026-23926 zabbix: Zabbix: Cross-Site Scripting via malicious script in m...
Keywords:
Status: NEW
Alias: CVE-2026-23926
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2479649
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-06 08:01 UTC by OSIDB Bzimport
Modified: 2026-05-18 18:55 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

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Description OSIDB Bzimport 2026-05-06 08:01:30 UTC 
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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