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CVE-2026-73050— SiYuan before v3.7.4 Stored XSS via select option color

CVSS 9.0 · Critical EPSS 0.25% · P16

Possible ATT&CK Techniques 1AI

T1189 · Drive-by Compromise

Affected Version Matrix 2

VendorProductVersion RangeStatus
siyuan-notesiyuan< 3.7.4affected
3.7.4unaffected
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I. Basic Information for CVE-2026-73050

Vulnerability Information
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Vulnerability Title
SiYuan before v3.7.4 Stored XSS via select option color
Source: CVE Program / CVE List V5
Vulnerability Description
SiYuan versions before v3.7.4 fail to validate or escape the color field in attribute-view select options, allowing stored cross-site scripting through eight unescaped render sites. Attackers can inject event-handler attributes by including quotation marks in the color value, executing arbitrary JavaScript when viewing databases containing the malicious select field.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/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团队开源的一款文档管理软件。 SiYuan 3.7.4之前版本存在跨站脚本漏洞，该漏洞源于未验证或转义attribute-view select选项中的color字段，可能导致存储型跨站脚本攻击，攻击者通过包含引号注入事件处理器属性，在查看包含恶意select字段的数据库时执行任意JavaScript。
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

VendorProductAffected VersionsCPESubscribe
siyuan-notesiyuan 0 ~ 3.7.4 -

II. Public POCs for CVE-2026-73050

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III. Intelligence Information for CVE-2026-73050

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Vendor Advisories for CVE-2026-73050 (2)

Same Patch Batch · siyuan-note · 2026-08-15 · 11 CVEs total

CVE-2026-730469.8 CRITICALSiYuan before v3.7.4 Authentication Bypass via HTTP Basic Auth
CVE-2026-730439.0 CRITICALSiYuan before v3.7.4 Remote Code Execution via Template Calculation
CVE-2026-730429.0 CRITICALSiYuan before v3.7.4 Remote Code Execution via Menu Metadata
CVE-2026-730419.0 CRITICALSiYuan before v3.7.4 Remote Code Execution via PDF Annotations
CVE-2026-730449.0 CRITICALSiYuan before v3.7.4 Stored Cross-Site Scripting via Column Width
CVE-2026-730539.0 CRITICALSiYuan before v3.7.4 Cross-Site Scripting via unicode2Emoji
CVE-2026-730529.0 CRITICALSiYuan before v3.7.4 Stored XSS via Attribute-View Field Names
CVE-2026-730457.5 HIGHSiYuan before 3.7.4 Brute-Force via authFilePublishAccess
CVE-2026-730547.5 HIGHSiYuan before v3.7.4 Authentication Bypass via WebSocket
CVE-2026-730476.2 MEDIUMsiyuan before v3.7.4 Server-Side Template Injection via attribute-view

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-73050

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