Medium
October CMS Vulnerable to Stored XSS via Branding Styles
Type: advisorySources: OSV
October is a Content Management System (CMS) and web platform. Prior to versions 3.7.13 and 4.0.12, a cross-site scripting (XSS) vulnerabilities was identified in October CMS backend configuration forms. A user with the Customize Backend Styles permission could inject malicious HTML/JS into the stylesheet input at Styles from Branding & Appearance settings. A specially crafted input could break out of the intended
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2025-61676
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 2 Nov 2026, 18:11 UTC · Revision 1
Source evidence
October CMS Vulnerable to Stored XSS via Branding Styles
core-osv · Original sourcePublished 10 Jan 2026, 03:14 UTC
October is a Content Management System (CMS) and web platform. Prior to versions 3.7.13 and 4.0.12, a cross-site scripting (XSS) vulnerabilities was identified in October CMS backend configuration forms. A user with the Customize Backend Styles permission could inject malicious HTML/JS into the stylesheet input at Styles from Branding & Appearance settings. A specially crafted input could break out of the intended
osv:CVE-2025-61676
Complete source record
{
"id": "f7d2e1101026483999a31265ffbba566fa729d8f26b5fea186cb5737644e3ece",
"url": "https://osv.dev/vulnerability/CVE-2025-61676",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "October CMS Vulnerable to Stored XSS via Branding Styles",
"summary": "October is a Content Management System (CMS) and web platform. Prior to versions 3.7.13 and 4.0.12, a cross-site scripting (XSS) vulnerabilities was identified in October CMS backend configuration forms. A user with the Customize Backend Styles permission could inject malicious HTML/JS into the stylesheet input at Styles from Branding & Appearance settings. A specially crafted input could break out of the intended",
"evidence": "osv:CVE-2025-61676",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2025-61676",
"aliases": [
"CVE-2025-61676",
"GHSA-wvpq-h33f-8rp6"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/octobercms/october",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "6130d6d694f535340b2c58db29702cbcd6eb29a4"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "3.7.13"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"cpe": "cpe:2.3:a:octobercms:october:*:*:*:*:*:*:*:*",
"range": [
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"introduced": "0"
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{
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}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
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],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-61676.json"
}
}
],
"modified": "2026-10-28T02:30:22.013046745Z",
"provider": "osv",
"references": [
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/61xxx/CVE-2025-61676.json",
"https://github.com/octobercms/october/security/advisories/GHSA-wvpq-h33f-8rp6",
"https://nvd.nist.gov/vuln/detail/CVE-2025-61676"
],
"provider_metadata": {
"cwe_ids": [
"CWE-79"
],
"cna_assigner": "GitHub_M",
"unresolved_ranges": [
{
"extracted_events": [
{
"range": [
{
"introduced": "4.0.0"
},
{
"fixed": "4.0.12"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
}
]
}
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/61xxx/CVE-2025-61676.json"
}
},
"related_cves": [
{
"value": "CVE-2025-61676",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 488153,
"published_at": "2026-01-10T03:14:00.708+00:00"
}