---
id: CVE-2026-73050
title: >-
  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
summary: >-
  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
  includ…
severity: critical
cvss: 9
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H'
cwe:
  - CWE-79
published: '2026-08-15'
updated: '2026-08-15'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-73050'
references:
  - url: >-
      https://github.com/siyuan-note/siyuan/security/advisories/GHSA-m7cc-jh9q-wxg8
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/siyuan-before-stored-xss-via-select-option-color
    label: disclosure@vulncheck.com
tags:
  - nvd
ingestedAt: '2026-08-16T13:39:04.378Z'
epss: 0.00247
epssPercentile: 0.16309
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.