CVE-2026-87807
8.7
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Summary
siyuan versions before v3.8.2 contain an authenticated SQL injection vulnerability in the fullTextSearchBlock endpoint's method=1 query parameter. Attackers can inject UNION SELECT statements to read the entire blocks table, bypassing publish-access controls and exposing all document content and sensitive attributes.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| siyuan-note | siyuan | 0 < 3.8.2 | affected |
| siyuan-note | siyuan | 3.8.2 | unaffected |
Weaknesses
- CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
References
- https://github.com/siyuan-note/siyuan/security/advisories/GHSA-336w-67gx-gx2h
- https://www.vulncheck.com/advisories/siyuan-before-3.8.2-sql-injection-via-fulltextsearchblock
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