CVE-2026-100644

HIGH 7.5

SiYuan before v3.8.4 SQL Injection via dailyNoteSavePath

CVSS Score

7.5

EPSS Score

0.0%

EPSS Percentile

0th

SiYuan before v3.8.4 contains a SQL injection vulnerability in the graph query endpoint where the dailyNoteSavePath parameter is concatenated into SQL without escaping. Unauthenticated attackers on published sites with auth disabled can inject SQL via UNION SELECT to extract arbitrary database rows from all notebooks.

CWE	CWE-89
Vendor	siyuan-note
Product	siyuan
Published	Sep 26, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Affected Versions

siyuan-note / siyuan

0 < 3.8.4

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/siyuan-note/siyuan/security/advisories/GHSA-xr4h-j7cg-q8pc vulncheck.com: https://www.vulncheck.com/advisories/siyuan-before-3.8.4-sql-injection-via-dailynotesavepath

Credits

🔍 adamyordan