EUVD-2026-30354CVSS VectorNVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
Lifecycle Timeline
3DescriptionNVD
SiYuan is an open-source personal knowledge management system. From 2.1.12 to before 3.7.0. SiYuan's Bazaar marketplace renders package author metadata from the public bazaar stage feed into HTML without escaping. In the desktop app this becomes stored XSS, and because SiYuan's Electron windows are created with nodeIntegration: true and contextIsolation: false, a successful payload can call Node.js APIs and execute code on the host. This vulnerability is fixed in 3.7.0.
AnalysisAI
Stored cross-site scripting in SiYuan's Bazaar marketplace (versions 2.1.12 through 3.6.x) enables arbitrary code execution on the host system. The vulnerability stems from unescaped package author metadata rendering, which when exploited through a malicious marketplace package, allows attackers to leverage SiYuan's insecure Electron configuration (nodeIntegration enabled, contextIsolation disabled) to execute Node.js APIs and OS-level commands. …
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RemediationAI
Within 24 hours: Inventory all SiYuan installations across the organization and document versions in use; disable or restrict access to the Bazaar marketplace feature pending remediation. Within 7 days: Contact SiYuan vendor for patch timeline and interim guidance; implement network segmentation to limit SiYuan process capabilities if applicable. …
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