CVE-2026-69083: SiYuan before v3.7.3 SQL Injection via fullTextSearchAssetContent

Severity: critical (CVSS 10.0 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-03 · updated 2026-10-23
Weakness: CWE-89

Description

SiYuan versions before v3.7.3 contain SQL injection vulnerabilities in the fullTextSearchAssetContent endpoint reachable by unauthenticated users and publish RoleReader tokens. Attackers can execute arbitrary SQL on the read-write asset-content database via unescaped method parameters and REGEXP clauses to read, modify, or delete cross-notebook data.

Affected products

siyuan-note siyuan: before 3.7.3 — fixed in 3.7.3

How to fix

Upgrade to a fixed version: siyuan-note siyuan 3.7.3. Check the vendor advisory for mitigations.

References

https://github.com/siyuan-note/siyuan/security/advisories/GHSA-fph3-ghq9-vw66
https://www.vulncheck.com/advisories/siyuan-before-sql-injection-via-fulltextsearchassetcontent
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-fph3-ghq9-vw66

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