HIGH 7.6 NVD
CVE-2026-116167
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.loc
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.
References
- https://github.com/siyuan-note/siyuan/security/advisories/GHSA-fmj3-xc2f-6w4w
- https://www.vulncheck.com/advisories/siyuan-2.9.0-before-3.8.7-xss-via-check-auth-to-param
This high severity vulnerability with a CVSS score of 7.6 was published on 2026-10-25 via NVD.
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