SQL Injection in B3log Siyuan
CVE-2026-29073
SiYuan is a personal knowledge management system. Prior to version 3.6.0, the /api/query/sql lets a user run sql directly, but it only checks basic auth, not admin rights, any logged-in user, even readers, can run any sql query on the database. This issue has been patched in version 3.6.0.
Vulnerability class: SQL Injection
EPSS: 0.003 (24.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- B3log Siyuan
- Siyuan-note Siyuan — versions < 3.6.0
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-29073?
- CVE-2026-29073 is a high-severity vulnerability in B3log Siyuan, classified under SQL Injection. CVSS score: 8.8/10. Published 2026-03-06.
- How severe is CVE-2026-29073?
- High severity. CVSS v3 base score is 8.8 out of 10.