---
id: CVE-2026-63667
title: ApostropheCMS is an open-source Node.js content management system
summary: >-
  ApostropheCMS is an open-source Node.js content management system. Prior to
  3.6.2, the import-export module in packages/import-export/lib/formats/gzip.js
  constructs an attachment source path from the attacker-controlled _id, name,
  and ex…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-22
vendor: apostrophecms
product: '@apostrophecms/import-export'
affected:
  - '@apostrophecms/import-export <= 3.6.1'
patched:
  - '@apostrophecms/import-export 3.6.2'
published: '2026-08-17'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T21:11:46.833'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-63667'
references:
  - url: >-
      https://github.com/apostrophecms/apostrophe/commit/87cccf44a23d09420875ca8a3765eb3db843836a
    label: security-advisories@github.com
  - url: >-
      https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-79qf-vqgc-7xx3
    label: security-advisories@github.com
  - url: >-
      https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-79qf-vqgc-7xx3
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-63667'
  - url: 'https://github.com/advisories/GHSA-79qf-vqgc-7xx3'
tags:
  - nvd
  - ghsa
  - npm
epss: 0.0046
epssPercentile: 0.37223
aliases:
  - GHSA-79qf-vqgc-7xx3
ecosystem: npm
ingestedAt: '2026-09-02T15:46:29.783Z'
---

## Overview

ApostropheCMS is an open-source Node.js content management system. Prior to 3.6.2, the import-export module in packages/import-export/lib/formats/gzip.js constructs an attachment source path from the attacker-controlled _id, name, and extension fields in aposAttachments.json without ensuring that the resolved path remains under the extracted attachments directory, allowing an authenticated contributor to import a crafted archive, read a host file with an allowed extension, and publish the copied file at an unauthenticated uploads URL. This issue is fixed in version 3.6.2.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Package advisory (CVE-2026-63667)

Affected packages:

- `@apostrophecms/import-export <= 3.6.1`

Patched in:

- `@apostrophecms/import-export 3.6.2`

Source: https://github.com/advisories/GHSA-79qf-vqgc-7xx3