Vulnerability details
CVE-2026-93591
siyuan-note siyuan
SiYuan before 3.8.3 SQL Injection via unescaped tag in graph.go
CVSS 4.0
7.2High
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.2High | 4.0 | CVEProject cvelistV5 (CNA) (VulnCheck) | 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 |
| 7.6High | 3.1 | CVEProject cvelistV5 (CNA) (VulnCheck) | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| siyuan-note | siyuan | v < 3.8.3 | CVEProject cvelistV5 (CNA) |
References and advisories
2
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Details
- Published
- 2026-09-18
- Last updated
- 2026-09-18
- State
- Published
- Assigner (CNA)
- VulnCheck
Exploit prediction (EPSS)
0.31%
Probability of exploitation in 30 days
24.7%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- Proof of concept
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')