CVE-2026-93591
SiYuan before 3.8.3 SQL Injection via unescaped tag in graph.go
- State
- Published
- Severity
- 7.2 High
- Published
- Sep 18, 2026
- Updated
- Sep 18, 2026
- Reserved
- Sep 18, 2026
Description
SiYuan versions before 3.8.3 contain an SQL injection vulnerability in the graph.go query2Stmt function where tag values are concatenated raw into SQL string literals without escaping single quotes. A publish-mode reader or anonymous visitor can inject SQL via inline HTML span tags in the getGraph endpoint to execute arbitrary queries on the read-write database and exfiltrate private data across notebooks.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 7.2 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 7.6 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L | VulnCheck |
Weaknesses
- CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Affected Products
| Product | Versions |
|---|---|
siyuansiyuan-note |
|
References
- GitHub Security Advisory (GHSA-5rwv-4j4c-f954)vendor-advisory
- VulnCheck Advisory: SiYuan before 3.8.3 SQL Injection via unescaped tag in graph.gothird-party-advisory
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