Critical
SiYuan: Stored XSS to RCE via CSS-snippet
Type: advisorySources: OSV
SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, CSS snippet body containing breaks out of its surrounding
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-54067
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 2 Nov 2026, 17:32 UTC · Revision 1
Source evidence
SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, CSS snippet body containing breaks out of its surrounding
osv:CVE-2026-54067
Complete source record
{
"id": "aa57f73e160afcb0d593f9f72873774bee2fc6f54640a877e06aa5a9999577ba",
"url": "https://osv.dev/vulnerability/CVE-2026-54067",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "SiYuan: Stored XSS to RCE via CSS-snippet",
"summary": "SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, CSS snippet body containing breaks out of its surrounding",
"evidence": "osv:CVE-2026-54067",
"products": [],
"severity": "critical",
"structured": {
"id": "CVE-2026-54067",
"aliases": [
"CVE-2026-54067",
"GHSA-mvjr-vv3c-w4qv",
"GO-2026-5963"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/siyuan-note/siyuan",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "27e0051e0d067892e833df1063cb2fb469600e98"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "3.7.0"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"introduced": "0"
},
{
"fixed": "3.7.0"
}
],
"source": "DESCRIPTION"
}
]
}
}
],
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"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54067.json"
}
}
],
"modified": "2026-10-28T02:30:21.588149396Z",
"provider": "osv",
"references": [
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54067.json",
"https://github.com/siyuan-note/siyuan/security/advisories/GHSA-mvjr-vv3c-w4qv",
"https://nvd.nist.gov/vuln/detail/CVE-2026-54067"
],
"provider_metadata": {
"cwe_ids": [
"CWE-1188",
"CWE-79"
],
"cna_assigner": "GitHub_M",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54067.json"
}
},
"related_cves": [
{
"value": "CVE-2026-54067",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 487843,
"published_at": "2026-06-24T21:14:38.173+00:00"
}