{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-32257",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-03-11T15:05:48.396Z",
        "datePublished": "2026-08-26T16:45:12.100Z",
        "dateUpdated": "2026-08-26T16:45:12.100Z"
    },
    "containers": {
        "cna": {
            "title": "Winter: Stored XSS through Brand Settings custom styles",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-79",
                            "lang": "en",
                            "description": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "NONE",
                        "baseScore": 8.1,
                        "baseSeverity": "HIGH",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "HIGH",
                        "privilegesRequired": "HIGH",
                        "scope": "CHANGED",
                        "userInteraction": "REQUIRED",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/wintercms/winter/security/advisories/GHSA-v7cf-8gh9-gxmj",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/wintercms/winter/security/advisories/GHSA-v7cf-8gh9-gxmj"
                },
                {
                    "name": "https://github.com/wintercms/winter/commit/d28f0b9474af79cfaa80eeb9d691f7a7c4469720",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/wintercms/winter/commit/d28f0b9474af79cfaa80eeb9d691f7a7c4469720"
                }
            ],
            "affected": [
                {
                    "vendor": "wintercms",
                    "product": "winter",
                    "versions": [
                        {
                            "version": "< 1.2.13",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-08-26T16:45:12.100Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Winter is a free, open-source content management system (CMS) based on the Laravel PHP framework. Prior to 1.2.13, custom CSS supplied through the Brand Settings Styles field by a backend user with the backend.manage_branding permission is compiled by the LESS parser and rendered without sanitization on every backend page, allowing stored cross-site scripting against backend users. This issue is fixed in version 1.2.13."
                }
            ],
            "source": {
                "advisory": "GHSA-v7cf-8gh9-gxmj",
                "discovery": "UNKNOWN"
            }
        }
    }
}