CVE-2026-44586 - SiYuan: Bazaar marketplace renders unescaped package author metadata, allowing XSS and Electron code execution

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HIGH

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

Published May 14, 2026

8.3

HIGH

CVSS 3.1

EPSS 0.43%

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.

Affected products

Vendor Siyuan-Note Product Siyuan Default
n/a
- Version
  >= 2.1.12, < 3.7.0
  Status
  affected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Siyuan-Note

Siyuan

n/a

Version	Status	Constraints
>= 2.1.12, < 3.7.0	affected	-

Remediation

No remediation recorded yet.

Weaknesses (2)

CWE-79

Cross-site Scripting (XSS)

CWE-94

Code Injection

References (2)

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-30354
Advisory
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-x6wf-w2rg-2gw9
exploitx_refsource_CONFIRM

Link	Providers	Tags
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-30354		Advisory
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-x6wf-w2rg-2gw9		exploitx_refsource_CONFIRM