CVE-2026-93591

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 Vector

References

• https://github.com/siyuan-note/siyuan/security/advisories/GHSA-5rwv-4j4c-f954
• https://www.vulncheck.com/advisories/siyuan-before-3.8.3-sql-injection-via-unescaped-tag-in-graph-go
• https://github.com/siyuan-note/siyuan/security/advisories/GHSA-5rwv-4j4c-f954