CVE-2026-7186 - Vulnerability Details - OpenCVE

Stored cross-site scripting in the URL dashboard widget in Checkmk <2.5.0p5, <2.4.0p31, <2.3.0p48, and all 2.2.0 versions allows a user with dashboard editing permissions to store a URL with a dangerous URI scheme such as javascript: that executes scripts in other users' browsers when they view the dashboard.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction Active

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/17991

History

Mon, 08 Jun 2026 14:30:00 +0000

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

Mon, 08 Jun 2026 13:00:00 +0000

Type	Values Removed	Values Added
Description		Stored cross-site scripting in the URL dashboard widget in Checkmk <2.5.0p5, <2.4.0p31, <2.3.0p48, and all 2.2.0 versions allows a user with dashboard editing permissions to store a URL with a dangerous URI scheme such as javascript: that executes scripts in other users' browsers when they view the dashboard.
Title		Fix stored XSS in URL dashboard widget via dangerous URI schemes
First Time appeared		Checkmk Checkmk checkmk
Weaknesses		CWE-79
CPEs		cpe:2.3:a:checkmk:checkmk:::::::: cpe:2.3:a:checkmk:checkmk:2.2.0:::::::*
Vendors & Products		Checkmk Checkmk checkmk
References		https://checkmk.com/werk/17991
Metrics		cvssV4_0 `{'score': 8.5, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:L/SA:N'}`

MITRE

Status: PUBLISHED

Assigner: Checkmk

Published: 2026-06-08T12:05:28.554Z

Updated: 2026-06-08T13:15:47.369Z

Reserved: 2026-04-27T12:54:14.627Z

Link: CVE-2026-7186

Vulnrichment

Updated: 2026-06-08T13:15:41.514Z

NVD

Status : Received

Published: 2026-06-08T13:16:33.480

Modified: 2026-06-08T13:16:33.480

Link: CVE-2026-7186

Redhat

No data.

OpenCVE Enrichment

No data.

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