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Vulnerabilities CVE-2026-73050

CVE-2026-73050

Critical
Open
TLP:CLEAR

SiYuan before v3.7.4 Stored XSS via select option color

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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.

Details

CVSS Score
9.4
CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Confidence
90%
Published
Aug 15, 2026
Last Modified
Aug 15, 2026
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