Critical
SiYuan: Stored XSS to RCE via attribute-view cell rendering in genAVValueHTML()
Type: advisorySources: OSV
SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, the attribute-view (database) cell renderer genAVValueHTML interpolates cell content raw in four of its branches: text, url, phone, and mAsset. A cell value like or "> breaks out of its surrounding tag and runs arbitrary JavaScript in the renderer when the victim opens the block-attribute panel. On Electron desktop the renderer runs with nodeIntegration:true, so the XSS chains to host RCE via require('child_process'). AV files live under the workspace and ride normal sync, so an attacker with write access to any synced workspace plants the payload once and it fires on every device that opens a panel containing that row.he kernel doesn't escape on the way in either, so the malicious cell persists byte-for-byte. There's no equivalent of the html.EscapeAttrVal call that protects block IAL attributes at kernel/model/blockial.go:261. This vulnerability is fixed in 3.7.0.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-54158
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 7 Nov 2026, 17:32 UTC · Revision 1
Source evidence
SiYuan: Stored XSS to RCE via attribute-view cell rendering in genAVValueHTML()
core-osv · Original sourcePublished 24 Jun 2026, 21:19 UTC
SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, the attribute-view (database) cell renderer genAVValueHTML interpolates cell content raw in four of its branches: text, url, phone, and mAsset. A cell value like or "> breaks out of its surrounding tag and runs arbitrary JavaScript in the renderer when the victim opens the block-attribute panel. On Electron desktop the renderer runs with nodeIntegration:true, so the XSS chains to host RCE via require('child_process'). AV files live under the workspace and ride normal sync, so an attacker with write access to any synced workspace plants the payload once and it fires on every device that opens a panel containing that row.he kernel doesn't escape on the way in either, so the malicious cell persists byte-for-byte. There's no equivalent of the html.EscapeAttrVal call that protects block IAL attributes at kernel/model/blockial.go:261. This vulnerability is fixed in 3.7.0.
osv:CVE-2026-54158
Complete source record
{
"id": "614abdba9f19dfd162279a851a81255a9e1f9ffde8946e3d31cdb665ee6ad613",
"url": "https://osv.dev/vulnerability/CVE-2026-54158",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "SiYuan: Stored XSS to RCE via attribute-view cell rendering in genAVValueHTML()",
"summary": "SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, the attribute-view (database) cell renderer genAVValueHTML interpolates cell content raw in four of its branches: text, url, phone, and mAsset. A cell value like or \"> breaks out of its surrounding tag and runs arbitrary JavaScript in the renderer when the victim opens the block-attribute panel. On Electron desktop the renderer runs with nodeIntegration:true, so the XSS chains to host RCE via require('child_process'). AV files live under the workspace and ride normal sync, so an attacker with write access to any synced workspace plants the payload once and it fires on every device that opens a panel containing that row.he kernel doesn't escape on the way in either, so the malicious cell persists byte-for-byte. There's no equivalent of the html.EscapeAttrVal call that protects block IAL attributes at kernel/model/blockial.go:261. This vulnerability is fixed in 3.7.0.",
"evidence": "osv:CVE-2026-54158",
"products": [],
"severity": "critical",
"structured": {
"id": "CVE-2026-54158",
"aliases": [
"CVE-2026-54158",
"GHSA-5xfx-xj4h-5p7r",
"GO-2026-5957"
],
"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-2026-54158.json"
}
}
],
"modified": "2026-10-28T02:30:51.267326030Z",
"provider": "osv",
"references": [
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54158.json",
"https://github.com/siyuan-note/siyuan/security/advisories/GHSA-5xfx-xj4h-5p7r",
"https://nvd.nist.gov/vuln/detail/CVE-2026-54158"
],
"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-2026-54158.json"
}
},
"related_cves": [
{
"value": "CVE-2026-54158",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 519991,
"published_at": "2026-06-24T21:19:16.988+00:00"
}