CVE-2026-23926
Stored XSS vulnerability in Host navigator widget maintenance tooltip
8.4CVSSHIGH
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.
CVSS Vector Breakdown
Exploitability
AV:NAccess VectorNetwork
AC:LAccess ComplexityLow
Impact
C:HConfidentialityH
I:HIntegrityH
A:HAvailabilityH
Weaknesses
Affected Products
Attack Graph
Products CVE Techniques Tactics
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Exploitability
Official Patch Available
Workaround Available
MITRE ATT&CK
2 techniques Execution
Initial Access
References
Timeline
Published
May 6, 2026
Last Updated
May 7, 2026
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