CVE-2026-100642 (GCVE-0-2026-100642)
Vulnerability from cvelistv5
Published
2026-09-26 13:23
Modified
2026-09-30 14:45
Severity ?
7.2 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N
7.6 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H
CWE
  • CWE-346 - Origin Validation Error
Summary
SiYuan versions from v2.1.0 before v3.8.4 contain a cross-site request forgery vulnerability in the CheckAuth lock-screen pass-through branch that grants administrator access to loopback requests without validating Origin headers. Attackers can craft malicious web pages that force victims to terminate the kernel process, read workspace configuration and proxy settings, and trigger administrative actions via zero-credential cross-origin requests from the victim's browser.
References
Impacted products
Vendor Product Version
siyuan-note siyuan Version: 2.1.0   ≤
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