{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-3466",
        "assignerOrgId": "f7d6281c-4801-44ce-ace2-493291dedb0f",
        "state": "PUBLISHED",
        "assignerShortName": "Checkmk",
        "dateReserved": "2026-03-03T09:09:01.487Z",
        "datePublished": "2026-04-07T12:08:50.132Z",
        "dateUpdated": "2026-04-22T12:26:27.839Z"
    },
    "containers": {
        "cna": {
            "affected": [
                {
                    "defaultStatus": "unaffected",
                    "product": "Checkmk",
                    "vendor": "Checkmk GmbH",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "2.2.0",
                            "versionType": "semver"
                        },
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                            "lessThan": "2.3.0p46",
                            "status": "affected",
                            "version": "2.3.0",
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                            "version": "2.4.0",
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                            "lessThan": "2.5.0",
                            "status": "affected",
                            "version": "2.5.0b1",
                            "versionType": "semver"
                        }
                    ]
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "type": "reporter",
                    "value": "Alex Williams (Pellera Technologies)"
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "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."
                }
            ],
            "impacts": [
                {
                    "capecId": "CAPEC-592",
                    "descriptions": [
                        {
                            "lang": "en",
                            "value": "CAPEC-592: Stored XSS"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "baseScore": 8.5,
                        "baseSeverity": "HIGH",
                        "vectorString": "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",
                        "version": "4.0"
                    }
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-79",
                            "description": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')",
                            "lang": "en",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "f7d6281c-4801-44ce-ace2-493291dedb0f",
                "shortName": "Checkmk",
                "dateUpdated": "2026-04-22T12:26:27.839Z"
            },
            "references": [
                {
                    "url": "https://checkmk.com/werk/19033",
                    "tags": [
                        "vendor-advisory"
                    ]
                },
                {
                    "url": "https://checkmk.com/werk/19583",
                    "tags": [
                        "vendor-advisory"
                    ]
                },
                {
                    "url": "https://www.vulncheck.com/advisories/checkmk-stored-cross-site-scripting-in-dashlet-title",
                    "tags": [
                        "third-party-advisory"
                    ]
                }
            ],
            "title": "Cross-site scripting in dashlet title",
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:a:checkmk:checkmk:2.2.0:*:*:*:*:*:*:*"
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                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:a:checkmk:checkmk:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.3.0",
                                    "versionEndExcluding": "2.3.0p46"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:a:checkmk:checkmk:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.4.0",
                                    "versionEndExcluding": "2.4.0p25"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:a:checkmk:checkmk:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.5.0b1",
                                    "versionEndExcluding": "2.5.0"
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            ],
            "x_generator": {
                "engine": "cvelib 1.8.0"
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        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-04-07T13:18:39.707466Z",
                                "id": "CVE-2026-3466",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
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                                        "Technical Impact": "total"
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                                "role": "CISA Coordinator",
                                "version": "2.0.3"
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                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
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                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-04-07T13:18:48.034Z"
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