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vuln-cve/data/2026/55xxx/CVE-2026-55570.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-55570",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-06-16T23:11:20.214Z",
"datePublished": "2026-06-24T21:24:21.266Z",
"dateUpdated": "2026-06-25T13:49:44.646Z"
},
"containers": {
"cna": {
"title": "SiYuan: Stored XSS results to Electron RCE in SiYuan marketplace via unescaped `data-obj` attribute (Bypass for CVE-2026-45375's patch)",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-79",
"lang": "en",
"description": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-94",
"lang": "en",
"description": "CWE-94: Improper Control of Generation of Code ('Code Injection')",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-116",
"lang": "en",
"description": "CWE-116: Improper Encoding or Escaping of Output",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"references": [
{
"name": "https://github.com/siyuan-note/siyuan/security/advisories/GHSA-x88j-wgpr-h22x",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/siyuan-note/siyuan/security/advisories/GHSA-x88j-wgpr-h22x"
}
],
"affected": [
{
"vendor": "siyuan-note",
"product": "siyuan",
"versions": [
{
"version": "< 3.7.0",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-06-24T21:24:21.266Z"
},
"descriptions": [
{
"lang": "en",
"value": "SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, it does not escape the untrusted fields (name, version, author, description) when they are serialized into the data-obj HTML attribute of each marketplace card. Because the attribute is single-quoted and the value is produced with JSON.stringify() (which does not escape ', <, or >), a package whose name contains a single quote breaks out of the attribute and injects arbitrary HTML. In the desktop client the main BrowserWindow runs with nodeIntegration: true, contextIsolation: false, so the injected markup escalates from DOM XSS to arbitrary OS command execution. This is the same root cause and same impact as the original advisory, reached through a sibling sink the patch did not cover. This vulnerability is fixed in 3.7.0."
}
],
"source": {
"advisory": "GHSA-x88j-wgpr-h22x",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"references": [
{
"url": "https://github.com/siyuan-note/siyuan/security/advisories/GHSA-x88j-wgpr-h22x",
"tags": [
"exploit"
]
}
],
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-06-25T13:49:21.857553Z",
"id": "CVE-2026-55570",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-06-25T13:49:44.646Z"
}
}
]
}
}