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VulnerabilityPublished

CVE-2025-67488: siyuan · Path Traversal

Affects siyuanSource CVE Database V5

0

Not known to be exploited · CVSS 7.8 High : upgrade to 3.5.0 soon.

Data as of 26 Oct 2026, 14:05 UTC

CVSS 3.1 base score
7.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 37% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 3.5.0
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 9 Dec 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade siyuan-note/siyuan to 3.5.0.

Affected software

ProductAffectedFixed in
GitHubsiyuan-note/siyuanpkg:github/siyuan-note/siyuanOther threatsAffected
  • <3.5.0
Fixed in
  • 3.5.0

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

European organizations should immediately audit their SiYuan deployments to identify affected versions and restrict import functionality to trusted, authenticated users only. Until the patch in version 3.5.0 is applied, implement strict access controls and monitor import activity logs for suspicious ZIP file imports. Employ network segmentation to isolate SiYuan servers from critical infrastructure and sensitive data repositories. Validate and sanitize all imported ZIP files externally before allowing import into SiYuan, possibly using sandboxing or file integrity verification tools. Regularly update authentication credentials and enforce multi-factor authentication to reduce the risk of compromised accounts. Consider deploying host-based intrusion detection systems (HIDS) to detect unauthorized file modifications. Finally, plan and test the upgrade to version 3.5.0 promptly once released to remediate the vulnerability.

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.

References

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