Package Instance

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{
    "url": "http://public2.vulnerablecode.io/api/packages/40697?format=api",
    "purl": "pkg:nuget/Umbraco.Cms@16.2.0",
    "type": "nuget",
    "namespace": "",
    "name": "Umbraco.Cms",
    "version": "16.2.0",
    "qualifiers": {},
    "subpath": "",
    "is_vulnerable": true,
    "next_non_vulnerable_version": null,
    "latest_non_vulnerable_version": null,
    "affected_by_vulnerabilities": [
        {
            "url": "http://public2.vulnerablecode.io/api/vulnerabilities/71448?format=api",
            "vulnerability_id": "VCID-42ec-2ca6-yyac",
            "summary": "Umbraco is an ASP.NET CMS. From 16.2.0 to before 16.5.1 and 17.2.2, An authenticated backoffice user with access to Settings can inject malicious HTML into property type descriptions. Due to an overly permissive attributeNameCheck configuration (/.+/) in the UFM DOMPurify instance, event handler attributes such as onclick and onload, when used within Umbraco web components (umb-*, uui-*, ufm-*) were not filtered. This vulnerability is fixed in 16.5.1 and 17.2.2.",
            "references": [
                {
                    "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2026-31833",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "0.00066",
                            "scoring_system": "epss",
                            "scoring_elements": "0.20642",
                            "published_at": "2026-06-11T12:55:00Z"
                        },
                        {
                            "value": "0.00066",
                            "scoring_system": "epss",
                            "scoring_elements": "0.20815",
                            "published_at": "2026-06-14T12:55:00Z"
                        },
                        {
                            "value": "0.00066",
                            "scoring_system": "epss",
                            "scoring_elements": "0.20837",
                            "published_at": "2026-06-13T12:55:00Z"
                        },
                        {
                            "value": "0.00066",
                            "scoring_system": "epss",
                            "scoring_elements": "0.20817",
                            "published_at": "2026-06-12T12:55:00Z"
                        }
                    ],
                    "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-31833"
                },
                {
                    "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31833",
                    "reference_id": "CVE-2026-31833",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "6.7",
                            "scoring_system": "cvssv3.1",
                            "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L"
                        },
                        {
                            "value": "MODERATE",
                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31833"
                },
                {
                    "reference_url": "https://github.com/advisories/GHSA-vrqc-59mw-qqg7",
                    "reference_id": "GHSA-vrqc-59mw-qqg7",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "MODERATE",
                            "scoring_system": "cvssv3.1_qr",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://github.com/advisories/GHSA-vrqc-59mw-qqg7"
                },
                {
                    "reference_url": "https://github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-vrqc-59mw-qqg7",
                    "reference_id": "GHSA-vrqc-59mw-qqg7",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "6.7",
                            "scoring_system": "cvssv3.1",
                            "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L"
                        },
                        {
                            "value": "MODERATE",
                            "scoring_system": "cvssv3.1_qr",
                            "scoring_elements": ""
                        },
                        {
                            "value": "MODERATE",
                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
                        },
                        {
                            "value": "Track",
                            "scoring_system": "ssvc",
                            "scoring_elements": "SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2026-03-11T15:52:31Z/"
                        }
                    ],
                    "url": "https://github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-vrqc-59mw-qqg7"
                }
            ],
            "fixed_packages": [
                {
                    "url": "http://public2.vulnerablecode.io/api/packages/40668?format=api",
                    "purl": "pkg:nuget/Umbraco.Cms@16.5.1",
                    "is_vulnerable": false,
                    "affected_by_vulnerabilities": [],
                    "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/Umbraco.Cms@16.5.1"
                },
                {
                    "url": "http://public2.vulnerablecode.io/api/packages/40670?format=api",
                    "purl": "pkg:nuget/Umbraco.Cms@17.2.2",
                    "is_vulnerable": false,
                    "affected_by_vulnerabilities": [],
                    "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/Umbraco.Cms@17.2.2"
                }
            ],
            "aliases": [
                "CVE-2026-31833",
                "GHSA-vrqc-59mw-qqg7"
            ],
            "risk_score": 3.1,
            "exploitability": "0.5",
            "weighted_severity": "6.2",
            "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-42ec-2ca6-yyac"
        }
    ],
    "fixing_vulnerabilities": [],
    "risk_score": "3.1",
    "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/Umbraco.Cms@16.2.0"
}