Stored XSS in SiYuan Note Product by SiYuan
CVE-2026-73052

9.4CRITICAL

Key Information:

Vendor

Siyuan-note

Status
Siyuan
Vendor
CVE Published:
15 August 2026

What is CVE-2026-73052?

SiYuan Note before version 3.7.4 is susceptible to a stored XSS vulnerability due to insufficient HTML escaping of attribute-view field names. This flaw allows attackers to manipulate database field names, leading to the injection of arbitrary JavaScript code when users access the sort menu. The risk is exacerbated by the Node integration feature in the desktop client, which can facilitate code execution, potentially compromising user data and security.

Affected Version(s)

siyuan 0 < 3.7.4

siyuan 3.7.4

References

https://github.com/siyuan-note/siyuan/security/advisories...
vendor-advisory
https://www.vulncheck.com/advisories/siyuan-before-stored...
third-party-advisory

CVSS V4

Score:
9.4
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Shirshakhtml
.