High
SiYuan 2.9.0 before 3.8.7 XSS via check-auth to Parameter
Type: advisorySources: OSV
SiYuan from 2.9.0 before 3.8.7 contains a cross-site scripting vulnerability in the unauthenticated /check-auth page that assigns the to parameter to window.location.href without scheme validation. Attackers can send a crafted link with a javascript: URI that executes after victim login, invoking kernel APIs to read or modify workspace content and settings.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-116167
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 3 Nov 2026, 15:30 UTC · Revision 1
Source evidence
SiYuan 2.9.0 before 3.8.7 XSS via check-auth to Parameter
core-osv · Original sourcePublished 25 Oct 2026, 13:20 UTC
SiYuan from 2.9.0 before 3.8.7 contains a cross-site scripting vulnerability in the unauthenticated /check-auth page that assigns the to parameter to window.location.href without scheme validation. Attackers can send a crafted link with a javascript: URI that executes after victim login, invoking kernel APIs to read or modify workspace content and settings.
osv:CVE-2026-116167
Complete source record
{
"id": "7b00f3afc1274e674d0f0fb51019ea573a76cf381ec0759fce4853f5f7863b0c",
"url": "https://osv.dev/vulnerability/CVE-2026-116167",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "SiYuan 2.9.0 before 3.8.7 XSS via check-auth to Parameter",
"summary": "SiYuan from 2.9.0 before 3.8.7 contains a cross-site scripting vulnerability in the unauthenticated /check-auth page that assigns the to parameter to window.location.href without scheme validation. Attackers can send a crafted link with a javascript: URI that executes after victim login, invoking kernel APIs to read or modify workspace content and settings.",
"evidence": "osv:CVE-2026-116167",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2026-116167",
"aliases": [
"CVE-2026-116167",
"GHSA-fmj3-xc2f-6w4w"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/siyuan-note/siyuan",
"type": "GIT",
"events": [
{
"introduced": "8c9d947ff2c0d757ca1f249ac17cc9029d5b3f2d"
},
{
"fixed": "7a7430d8a3cf362e23de004a454ddabe651dc778"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"introduced": "2.9.0"
},
{
"fixed": "3.8.7"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"range": [
{
"introduced": "2.9.0"
},
{
"fixed": "3.8.7"
}
],
"source": "DESCRIPTION"
}
]
}
}
],
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],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-116167.json"
}
}
],
"modified": "2026-10-28T02:30:29.915711028Z",
"provider": "osv",
"references": [
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/116xxx/CVE-2026-116167.json",
"https://github.com/siyuan-note/siyuan/security/advisories/GHSA-fmj3-xc2f-6w4w",
"https://nvd.nist.gov/vuln/detail/CVE-2026-116167",
"https://www.vulncheck.com/advisories/siyuan-2.9.0-before-3.8.7-xss-via-check-auth-to-parameter"
],
"provider_metadata": {
"cwe_ids": [
"CWE-79"
],
"cna_assigner": "VulnCheck",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/116xxx/CVE-2026-116167.json"
}
},
"related_cves": [
{
"value": "CVE-2026-116167",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 496842,
"published_at": "2026-10-25T13:20:10.372+00:00"
}