{"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"}}}}

{}

{"affected": [{"affectedData": [{"product": "winter", "vendor": "wintercms", "versions": [{"status": "affected", "version": "< 1.2.13"}]}], "source": "[email protected]"}], "cveTags": [], "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."}], "id": "CVE-2026-32257", "lastModified": "2026-08-26T17:16:53.247", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 1.7, "impactScore": 5.8, "source": "[email protected]", "type": "Secondary"}]}, "published": "2026-08-26T17:16:53.247", "references": [{"source": "[email protected]", "url": "https://github.com/wintercms/winter/commit/d28f0b9474af79cfaa80eeb9d691f7a7c4469720"}, {"source": "[email protected]", "url": "https://github.com/wintercms/winter/security/advisories/GHSA-v7cf-8gh9-gxmj"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "[email protected]", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.2.13)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "winter", "source": "cna", "vendor": "wintercms"}, "product": "winter", "vendor": "wintercms"}], "created": "2026-08-26T20:30:11.257818+00:00", "updated": "2026-08-26T20:30:11.662250+00:00", "vendors": ["wintercms", "wintercms$PRODUCT$winter"]}