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CVE-2026-100642

SiYuan v2.1.0 before v3.8.4 Cross-Site Request Forgery via CheckAuth PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
siyuan-note / siyuanaffected 2.1.0 before 3.8.4; unaffected 3.8.4

CWE

CWE-346

References

ADP enrichment

CISA-ADP

No English description supplied.