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

Quick assessment

Affected
siyuan-note siyuan
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

SiYuan是SiYuan开源的一个个人知识管理系统。 SiYuan 2.1.12至3.7.0之前版本存在跨站脚本漏洞，该漏洞源于Bazaar市场渲染包作者元数据时未转义，可能导致存储型跨站脚本攻击，进而执行任意代码。

CVSS 8.3 · High EPSS 0.43% · P36

Affected Version Matrix 1

VendorProduct Version RangeStatus
siyuan-note siyuan >= 2.1.12, < 3.7.0 affected
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I. Basic Information for CVE-2026-44586

Vulnerability Information
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Vulnerability Title
SiYuan: Bazaar marketplace renders unescaped package author metadata, allowing XSS and Electron code execution
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
SiYuan 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SiYuan是SiYuan开源的一个个人知识管理系统。 SiYuan 2.1.12至3.7.0之前版本存在跨站脚本漏洞，该漏洞源于Bazaar市场渲染包作者元数据时未转义，可能导致存储型跨站脚本攻击，进而执行任意代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
siyuan-note siyuan >= 2.1.12, < 3.7.0 -

II. Public POCs for CVE-2026-44586

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III. Intelligence Information for CVE-2026-44586

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Vendor Advisories for CVE-2026-44586 (1)

Same Patch Batch · siyuan-note · 2026-05-14 · 7 CVEs total

CVE-2026-45375 9.0 CRITICAL SiYuan: Bazaar marketplace renders unescaped package `name` and `version` metadata, allowi
CVE-2026-45147 4.3 MEDIUM SiYuan: Broken access control in SiYuan `/api/tag/getTag` — Reader role can mutate `Conf.T
CVE-2026-45148 4.3 MEDIUM SiYuan: Broken access control in SiYuan publish-mode Readers can enumerate metadata
CVE-2026-45371 SiYuan: SiYuan publish-mode Reader can mutate Conf and SQL index via 8 ungated APIs
CVE-2026-44670 SiYuan: Stored XSS via Attribute View name to Electron renderer RCE in SiYuan
CVE-2026-44588 SiYuan: URL-encoded title bypasses `escapeAriaLabel`, decoded by `decodeURIComponent` into

IV. Related Vulnerabilities

Same product: siyuan
Same vendor: siyuan-note
Same weakness: CWE-79

V. Comments for CVE-2026-44586

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