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CVE WatchOct 26, 2026

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 par

CVSS

6.8

Medium

EPSS

0.7%

p52

KEV

—

Exploit Today

16

0-100

Published: Oct 25, 2026 · Last modified: Oct 26, 2026 · CWE-79

EPSS · 30d
0.3%EPSS · 30 days0.7%
2026-10-262026-11-07
Technical description

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.

Official references
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