CVE-2026-73050

CRITICAL

CVE: CVE-2026-73050 - SiYuan versions before v3Sign in to save

CVSS

9.0

CVSS v3.1

EPSS

N/A

Exploit Prediction Score

Published

August 15, 2026

Exploitability

No EPSS data available

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.

Weaknesses

CWE-79

Affected Packages

No package data available.

Aliases

CVE-2026-73050

Related references

Publisher and database URLs for this record (shown for attribution; reading stays in Bugflare).

https://github.com/siyuan-note/siyuan/security/advisories/GHSA-m7cc-jh9q-wxg8
https://www.vulncheck.com/advisories/siyuan-before-stored-xss-via-select-option-color