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.
https://www.vulncheck.com/advisories/siyuan-before-sql-injection-via-fulltextsearchassetcontent
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-fph3-ghq9-vw66
Published: 2026-08-03
Updated: 2026-08-03
Base Score: 9.4
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:N
Severity: High
Base Score: 10
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
Severity: Critical
Base Score: 9.9
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N
Severity: Critical
EPSS: 0.0035