CVE-2026-93591CWE-89sql-injection

CVE-2026-93591

High · published September 18, 2026

CVSS v3.1
7.6
EPSS
0%
Percentile
23.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.6 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L
CVSS v4.0
7.2 · 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
EPSS
0.00316 · 23.3th percentile
Weakness
CWE-89 · Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Published
2026-09-18T18:19Z
References (3)
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-5rwv-4j4c-f954 · [email protected]https://www.vulncheck.com/advisories/siyuan-before-3.8.3-sql-injection-via-unescaped-tag-in-graph-go · [email protected]https://github.com/siyuan-note/siyuan/security/advisories/GHSA-5rwv-4j4c-f954 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 20 SEP 03:25Z
    EPSS moved — → 0%
    epss
  • 18 SEP 13:20Z
    SiYuan before 3.8.3 SQL Injection via unescaped tag in graph.go
    cvelistv5