CVE-2026-3466

HIGH EPSS 13.5%
Published Apr 7, 20262mo ago · Modified Jun 17, 20261w ago
8.5 CVSS 4.0
High
Find Similar
Published Apr 7, 2026 2mo ago
Last Modified Jun 17, 2026 1w ago

Description

Insufficient sanitization of dashboard dashlet title links in Checkmk 2.2.0 (EOL), Checkmk 2.3.0 before 2.3.0p46, Checkmk 2.4.0 before 2.4.0p25, and Checkmk 2.5.0 (beta) before 2.5.0 allows an attacker with dashboard creation privileges to perform stored cross-site scripting (XSS) attacks by tricking a victim into clicking a crafted dashlet title link on a shared dashboard.

CVSS Details

Base Score
8.5
Exploitability
—
Impact
—
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction A
Scope X

Threat Intelligence

EPSS Exploit Probability
13.5% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-79 Cross-site Scripting Injection

Affected Products 142

VendorProductVersionRange
checkmkcheckmk2.2.0any
checkmkcheckmk2.2.0any
checkmkcheckmk2.2.0any
checkmkcheckmk2.2.0any
checkmkcheckmk2.2.0any
checkmkcheckmk2.2.0any
checkmkcheckmk2.2.0any
checkmkcheckmk2.2.0any
checkmkcheckmk2.2.0any
checkmkcheckmk2.2.0any
checkmkcheckmk2.2.0any
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checkmkcheckmk2.2.0any
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checkmkcheckmk2.2.0any
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checkmkcheckmk2.2.0any
checkmkcheckmk2.2.0any
checkmkcheckmk2.2.0any
checkmkcheckmk2.2.0any
checkmkcheckmk2.2.0any
checkmkcheckmk2.2.0any
checkmkcheckmk2.2.0any
checkmkcheckmk2.2.0any
checkmkcheckmk2.2.0any
checkmkcheckmk2.2.0any
checkmkcheckmk2.2.0any
checkmkcheckmk2.2.0any
checkmkcheckmk2.2.0any
checkmkcheckmk2.2.0any
checkmkcheckmk2.2.0any
checkmkcheckmk2.2.0any
checkmkcheckmk2.2.0any
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checkmkcheckmk2.2.0any
checkmkcheckmk2.2.0any
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checkmkcheckmk2.2.0any
checkmkcheckmk2.3.0any
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checkmkcheckmk2.3.0any
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checkmkcheckmk2.3.0any
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checkmkcheckmk2.3.0any
checkmkcheckmk2.3.0any
checkmkcheckmk2.3.0any
checkmkcheckmk2.3.0any
checkmkcheckmk2.3.0any
checkmkcheckmk2.3.0any
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checkmkcheckmk2.3.0any
checkmkcheckmk2.3.0any
checkmkcheckmk2.3.0any
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checkmkcheckmk2.3.0any
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checkmkcheckmk2.3.0any
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checkmkcheckmk2.3.0any
checkmkcheckmk2.3.0any
checkmkcheckmk2.3.0any
checkmkcheckmk2.3.0any
checkmkcheckmk2.3.0any
checkmkcheckmk2.3.0any
checkmkcheckmk2.3.0any
checkmkcheckmk2.3.0any
checkmkcheckmk2.3.0any
checkmkcheckmk2.3.0any
checkmkcheckmk2.4.0any
checkmkcheckmk2.4.0any
checkmkcheckmk2.4.0any
checkmkcheckmk2.4.0any
checkmkcheckmk2.4.0any
checkmkcheckmk2.4.0any
checkmkcheckmk2.4.0any
checkmkcheckmk2.4.0any
checkmkcheckmk2.4.0any
checkmkcheckmk2.4.0any
checkmkcheckmk2.4.0any
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checkmkcheckmk2.4.0any
checkmkcheckmk2.4.0any
checkmkcheckmk2.4.0any
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checkmkcheckmk2.4.0any
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checkmkcheckmk2.4.0any
checkmkcheckmk2.4.0any
checkmkcheckmk2.4.0any
checkmkcheckmk2.4.0any
checkmkcheckmk2.4.0any
checkmkcheckmk2.4.0any
checkmkcheckmk2.4.0any
checkmkcheckmk2.4.0any
checkmkcheckmk2.5.0any
checkmkcheckmk2.5.0any

References 3

  • checkmk.com https://checkmk.com/werk/19033
    Vendor Advisory
  • checkmk.com https://checkmk.com/werk/19583
  • vulncheck.com https://www.vulncheck.com/advisories/checkmk-stored-cross-site-scripting-in-dashlet-title
    Release NotesThird Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.