CVE-2025-67488 SiYuan: ZipSlip -> Arbitrary File Overwrite -> RCE
An authenticated user can exploit a ZipSlip vulnerability in SiYuan to overwrite arbitrary files, potentially leading to remote code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2025-67488?
CVE-2025-67488 is a high-severity path traversal vulnerability in B3log Siyuan, published on 9 Dec 2025. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-22
Which versions are affected by CVE-2025-67488?
3 open source packages ship an affected version, including github.com/siyuan-note/siyuan/kernel. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
github.com/siyuan-note/siyuan/kernel Go | All versions | None |
github.com/siyuan-note/siyuan/kernel Go | All versions to 0.0.0-20251202123337-6ef83b42c7ce | None |
github.com/siyuan-note/siyuan/kernel Go | All versions to 0.0.0-20251202123337-6ef83b42c7ce | None |
Products include B3log Siyuan.
How do I fix CVE-2025-67488?
Upgrade to a fixed version.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2025-67488 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-67488 exists.
Other vulnerabilities in B3log Siyuan
- CVE-2026-32938 SiYuan has an Arbitrary File Read in its Desktop Publish Service
- CVE-2026-33669 SiYuan has Arbitrary Document Reading within the Publishing Service
- CVE-2026-33670 SiYuan has directory traversal within its publishing service
- CVE-2026-32767 SiYuan: Authorization Bypass Allows Arbitrary SQL Execution via Search API
- CVE-2024-53504 SQL injection in n/a
Sources
Also known as GHSA-gqfv-g4v7-m366, GO-2025-4221.