CVE-2026-33276 - Vulnerability Details - OpenCVE

Stored cross-site scripting (XSS) in Checkmk 2.5.0 (beta) before 2.5.0b2 allows authenticated users with permission to create hosts or services to execute arbitrary JavaScript in the browsers of other users performing searches in the Unified Search feature.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact Low

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact total

Vendors	Products
Checkmk	Checkmk

No data.

No data.

No data.

References

Link	Providers
https://checkmk.com/werk/19525

History

Tue, 31 Mar 2026 16:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Tue, 31 Mar 2026 14:30:00 +0000

Type	Values Removed	Values Added
Description		Stored cross-site scripting (XSS) in Checkmk 2.5.0 (beta) before 2.5.0b2 allows authenticated users with permission to create hosts or services to execute arbitrary JavaScript in the browsers of other users performing searches in the Unified Search feature.
Title		XSS in Unified Search via Unescaped Host/Service Names
First Time appeared		Checkmk Checkmk checkmk
Weaknesses		CWE-79
CPEs		cpe:2.3:a:checkmk:checkmk::::::::
Vendors & Products		Checkmk Checkmk checkmk
References		https://checkmk.com/werk/19525
Metrics		cvssV4_0 `{'score': 8.6, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:L/SA:N'}`

MITRE

Status: PUBLISHED

Assigner: Checkmk

Published: 2026-03-31T13:44:17.857Z

Updated: 2026-03-31T15:45:36.069Z

Reserved: 2026-03-23T10:47:17.577Z

Link: CVE-2026-33276

Vulnrichment

Updated: 2026-03-31T15:45:32.835Z

NVD

Status : Received

Published: 2026-03-31T15:16:14.173

Modified: 2026-03-31T15:16:14.173

Link: CVE-2026-33276

Redhat

No data.

OpenCVE Enrichment

No data.

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