CVE-2026-87807
HIGH
NVD
CVSS Score
7.5
Severity
HIGH
Published
Sep 09, 2026
Vendor
unknown
Description
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.