CVE-2026-73050: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in siyuan-note siyuan
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.
AI Analysis
Technical Summary
SiYuan versions prior to v3.7.4 do not properly validate or escape the color field used in attribute-view select options. This improper neutralization of input enables stored cross-site scripting through eight unescaped render sites. Attackers can inject event-handler attributes by including quotation marks in the color value, causing arbitrary JavaScript execution when the affected database entries are viewed.
Potential Impact
Successful exploitation allows an attacker with low privileges to execute arbitrary JavaScript in the context of the victim's browser when viewing affected database entries. This can lead to session hijacking, unauthorized actions, or other malicious activities within the application context. The CVSS 4.0 score of 9.4 reflects the critical nature of this vulnerability with high impact on confidentiality, integrity, and availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Users should monitor for an official fix from SiYuan and apply updates promptly once available. Until then, avoid using untrusted input in the color field of attribute-view select options or restrict access to trusted users only.
CVE-2026-73050: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in siyuan-note siyuan
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.
CVSS v4.0
Score 9.4critical
Affected software
siyuan-note
siyuan
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
SiYuan versions prior to v3.7.4 do not properly validate or escape the color field used in attribute-view select options. This improper neutralization of input enables stored cross-site scripting through eight unescaped render sites. Attackers can inject event-handler attributes by including quotation marks in the color value, causing arbitrary JavaScript execution when the affected database entries are viewed.
Potential Impact
Successful exploitation allows an attacker with low privileges to execute arbitrary JavaScript in the context of the victim's browser when viewing affected database entries. This can lead to session hijacking, unauthorized actions, or other malicious activities within the application context. The CVSS 4.0 score of 9.4 reflects the critical nature of this vulnerability with high impact on confidentiality, integrity, and availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Users should monitor for an official fix from SiYuan and apply updates promptly once available. Until then, avoid using untrusted input in the color field of attribute-view select options or restrict access to trusted users only.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-08-10T19:10:18.100Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a80e09bbf8831d539c1fe12
Added to database: 08/15/2026, 21:56:43 UTC
Last enriched: 08/23/2026, 13:29:04 UTC
Last updated: 09/30/2026, 03:28:30 UTC
Views: 49
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