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CVE-2025-67488

B3log Siyuan path traversal

7.8 HIGHPublic exploitEPSS 0.44%
  1. Published9 Dec 2025

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.

CVSS 3.1 breakdown

Attack vectorLocal
Attack complexityLow
Privileges requiredNone
User interactionRequired
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

B3log Siyuan< 3.5.0

Remediation

Fixed in
B3log Siyuan≥ 3.5.0

References

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Frequently asked

Is CVE-2025-67488 being actively exploited?

CVE-2025-67488 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.44%.

How severe is CVE-2025-67488?

CVE-2025-67488 has a CVSS 3.1 base score of 7.8, rated high. EPSS estimates a 0.44% probability of exploitation.

Which products are affected by CVE-2025-67488?

Affected products include B3log Siyuan.

How do I fix CVE-2025-67488?

Upgrade affected software to a fixed version, for example B3log Siyuan 3.5.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-67488 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.