Path Traversal in B3log Siyuan
CVE-2025-67488
SiYuan is self-hosted, open source personal knowledge management software. Versions 0.0.0-20251202123337-6ef83b42c7ce and below contain function importZipMd which is vulnerable to ZipSlips, allowing an authenticated user to overwrite files on the system. An authenticated user with access to the import functionality in notes is able to overwrite any file on the system, and can escalate to full code execution under some circumstances. A fix is planned for version 3.5.0.
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.004 (30.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- B3log Siyuan
- Siyuan-note Siyuan — versions <= 0.0.0-20251202123337-6ef83b42c7ce
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
- security-advisories@github.com (Product, x_refsource_MISC)
Frequently asked questions
- What is CVE-2025-67488?
- CVE-2025-67488 is a high-severity vulnerability in B3log Siyuan, classified under Path Traversal. CVSS score: 7.8/10. Published 2025-12-09.
- How severe is CVE-2025-67488?
- High severity. CVSS v3 base score is 7.8 out of 10.