CVE-2026-93591

Summary

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.

Affected Software

Weaknesses

• CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: yes
  • Technical Impact: partial

Additional References

• https://github.com/siyuan-note/siyuan/security/advisories/GHSA-5rwv-4j4c-f954

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

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