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CVE-2026-33067 PUBLISHED CVSS 5.300000190734863 MEDIUM

SiYuan is a personal knowledge management system. Versions 3.6.0 and below render package metadata fields (displayName, description) using template literals without HTML escaping. A malicious package author can inject arbitrary HTML/JavaScript into these fields, which executes automatically when any user browses the Bazaar page. Because SiYuan's Electron configuration enables nodeIntegration: true with contextIsolation: false, this XSS escalates directly to full Remote Code Execution on the victim's operating system — with zero user interaction beyond opening the marketplace tab. This issue has been fixed in version 3.6.1.

EPSS 0.08% · 22.5th percentile

Risk Scores

CVSS v4.0
5.300000190734863
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
EPSS Score
0.08%
22.5th percentile

Affected Products

VendorProductVersions
siyuan-notesiyuan< 3.6.1, < 3.6.1
github.comsiyuan-note/siyuan/kernel0, 0
b3logsiyuan0, 0

Timeline

References

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