{"id":"CVE-2026-87807","aliases":["GHSA-336w-67gx-gx2h"],"url":"https://o3.security/vulnerability/CVE-2026-87807","summary":"siyuan before v3.8.2 SQL Injection via fullTextSearchBlock","details":"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.","published":"2026-09-09T11:20:56.932Z","modified":"2026-09-10T03:48:34.460916591Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/87xxx/CVE-2026-87807.json"},{"type":"ADVISORY","url":"https://github.com/siyuan-note/siyuan/security/advisories/GHSA-336w-67gx-gx2h"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-87807"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/siyuan-before-3.8.2-sql-injection-via-fulltextsearchblock"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-09-10T03:48:34.460916591Z"}}