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CVE-2026-44586

SiYuan: Bazaar marketplace renders unescaped package author metadata, allowing XSS and Electron code execution

Published: May 14, 2026Updated: May 14, 2026 Sources: CVE List NVDCWE-79
NVD MITRE
8.3CVSSHIGH
EPSS Score
0.3%
Top 77.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

Description

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.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:RS:CC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-79CWE-94

Affected Products

siyuansiyuan-note

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

3 techniques
Execution
Initial Access
View detailed technique mapping

References

https://github.com/siyuan-note/siyuan/security/advisories/GHSA-x6wf-w2rg-2gw9
github.com

Timeline

Published
May 14, 2026
Last Updated
May 14, 2026

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