CVE-2026-116167
SiYuan 2.9.0 before 3.8.7 XSS via check-auth to Parameter
CVSS Score
6.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-79 |
| Vendor | siyuan-note |
| Product | siyuan |
| Published | Oct 25, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Affected Versions
siyuan-note / siyuan
2.9.0 < 3.8.7
References
Credits
🔍 lwierzbicki