CVE-2025-67488Public exploitNetwork attack vector

Code execution via traversal archive extraction

Published Dec 9, 2025 · Updated Dec 9, 2025

Path traversal in SiYuan before 3.5.0 allows remote authenticated users to overwrite arbitrary files through a crafted Markdown ZIP import. The importZipMd function passes the uploaded archive to gulu.Zip.Unzip under a temporary import path without containing traversal entries. Access to the note-import feature is required; overwritten executable files can run after a later trigger, including a container restart.

CVSS severity7.8
High
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in SiYuan before 3.5.0 allows remote authenticated users to overwrite arbitrary files through a crafted Markdown ZIP import. The importZipMd function passes the uploaded archive to gulu.Zip.Unzip under a temporary import path without containing traversal entries. Access to the note-import feature is required; overwritten executable files can run after a later trigger, including a container restart.

The record

CVE
CVE-2025-67488
Published
Dec 9, 2025
Updated
Dec 9, 2025
Vendor
SiYuan Note
Product
SiYuan
Classifications
CWE-22, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 9, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 9, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=<= 0.0.0-20251202123337-6ef83b42c7ce

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

SiYuan Note · SiYuanversion=<= 0.0.0-20251202123337-6ef83b42c7ce

Published CVSS scores

7.8GitHubCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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