High
SiYuan: Stored XSS to RCE in SiYuan via a per-attribute URL-scheme sanitizer gap in Lute (form action / SVG xlink:href)
Type: advisorySources: OSV
SiYuan is an open-source personal knowledge management system. Prior to 3.7.1, SiYuan renders note and package content to HTML through the Lute engine with sanitization enabled, but Lute's dangerous javascript scheme block does not check form action or SVG xlink:href attributes, allowing stored cross-site scripting in document export-preview and Bazaar package README render paths that can execute OS commands in the Electron desktop renderer. This issue is fixed in versions 3.7.1.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-59833
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 3 Nov 2026, 10:24 UTC · Revision 1
Source evidence
SiYuan: Stored XSS to RCE in SiYuan via a per-attribute URL-scheme sanitizer gap in Lute (form action / SVG xlink:href)
core-osv · Original sourcePublished 9 Jul 2026, 22:17 UTC
SiYuan is an open-source personal knowledge management system. Prior to 3.7.1, SiYuan renders note and package content to HTML through the Lute engine with sanitization enabled, but Lute's dangerous javascript scheme block does not check form action or SVG xlink:href attributes, allowing stored cross-site scripting in document export-preview and Bazaar package README render paths that can execute OS commands in the Electron desktop renderer. This issue is fixed in versions 3.7.1.
osv:CVE-2026-59833
Complete source record
{
"id": "d83231c63ce1ac67c14225430235d0d2a533442a9225e5cf52e2a078a3261aa8",
"url": "https://osv.dev/vulnerability/CVE-2026-59833",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "SiYuan: Stored XSS to RCE in SiYuan via a per-attribute URL-scheme sanitizer gap in Lute (form action / SVG xlink:href)",
"summary": "SiYuan is an open-source personal knowledge management system. Prior to 3.7.1, SiYuan renders note and package content to HTML through the Lute engine with sanitization enabled, but Lute's dangerous javascript scheme block does not check form action or SVG xlink:href attributes, allowing stored cross-site scripting in document export-preview and Bazaar package README render paths that can execute OS commands in the Electron desktop renderer. This issue is fixed in versions 3.7.1.",
"evidence": "osv:CVE-2026-59833",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2026-59833",
"aliases": [
"CVE-2026-59833",
"GHSA-97xv-3v84-h358"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/siyuan-note/siyuan",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "c72ca4cd09019e5f64afdee8f8c6ec5ef34858db"
},
{
"fixed": "ebe252e61fb93f258d083b9da0fa403679fdf94a"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "3.7.1"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"fixed": "ebe252e61fb93f258d083b9da0fa403679fdf94a"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "c72ca4cd09019e5f64afdee8f8c6ec5ef34858db"
}
],
"source": "REFERENCES_TAG",
"original_tag": "v3.7.1"
}
]
}
}
],
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],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-59833.json"
}
}
],
"modified": "2026-10-28T02:30:27.676275090Z",
"provider": "osv",
"references": [
"https://github.com/siyuan-note/siyuan/releases/tag/v3.7.1",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59833.json",
"https://github.com/siyuan-note/siyuan/security/advisories/GHSA-97xv-3v84-h358",
"https://nvd.nist.gov/vuln/detail/CVE-2026-59833",
"https://github.com/siyuan-note/siyuan/commit/ebe252e61fb93f258d083b9da0fa403679fdf94a"
],
"provider_metadata": {
"cwe_ids": [
"CWE-116",
"CWE-79",
"CWE-94"
],
"cna_assigner": "GitHub_M",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59833.json"
}
},
"related_cves": [
{
"value": "CVE-2026-59833",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 494449,
"published_at": "2026-07-09T22:17:05.933+00:00"
}