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CVE-2026-74802

SiYuan 3.7.3 Cross-Site WebSocket Hijacking via network proxy PUBLISHED

Description (CNA)

SiYuan versions before 3.7.4 contain a cross-site WebSocket hijacking vulnerability in the admin-only /ws/network/proxy endpoint that explicitly disables origin validation by setting CheckOrigin to unconditionally return true. Attackers can craft malicious webpages that establish WebSocket connections to this endpoint and direct the SiYuan kernel process to proxy arbitrary network traffic to attacker-chosen targets, enabling authenticated network pivoting through the victim's machine.

Affected (CNA)

Vendor / productVersions
siyuan-note / siyuanaffected 0 before 3.7.4; unaffected 3.7.4

CWE

CWE-346

References

ADP enrichment

CISA-ADP

No English description supplied.