CVE-2026-63667
ApostropheCMS: Arbitrary file read via import-export attachment-name path traversal
Description
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.
INFO
Published Date :
Aug. 17, 2026, 8:16 p.m.
Last Modified :
Nov. 2, 2026, 11:17 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | MITRE-CVE |
Solution
- Update ApostropheCMS to version 3.6.2 or later.
- Review and sanitize all imported archive data.
- Restrict contributor access to the import-export module.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-63667.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-63667 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-63667
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-63667 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-63667 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
Nov. 02, 2026
Action Type Old Value New Value Added Reference https://github.com/apostrophecms/apostrophe/commit/87cccf44a23d09420875ca8a3765eb3db843836a Added Reference https://github.com/apostrophecms/apostrophe/discussions/5516 Added Reference https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-79qf-vqgc-7xx3 Removed Reference https://github.com/apostrophecms/apostrophe/commit/87cccf44a23d09420875ca8a3765eb3db843836a Removed Reference https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-79qf-vqgc-7xx3 -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Nov. 02, 2026
Action Type Old Value New Value Added Reference https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-79qf-vqgc-7xx3 Removed Reference https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-79qf-vqgc-7xx3 -
CVE Translated by [email protected]
Oct. 23, 2026
Action Type Old Value New Value Added Translation Title: apostrophe de apostrophecms, Description: ApostropheCMS es un sistema de gestión de contenido de código abierto basado en Node.js. Antes de la versión 3.6.2, el módulo de importación-exportación en packages/import-export/lib/formats/gzip.js construye una ruta de origen de adjunto a partir de los campos _id, name y extensión controlados por el atacante en aposAttachments.json sin asegurar que la ruta resuelta permanezca bajo el directorio de adjuntos extraídos, permitiendo a un colaborador autenticado importar un archivo manipulado, leer un archivo del host con una extensión permitida, y publicar el archivo copiado en una URL de subidas no autenticada. Este problema se ha solucionado en la versión 3.6.2. -
New CVE Received by [email protected]
Aug. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'apostrophecms', 'product': 'apostrophe', 'versions': [{'status': 'affected', 'version': '< 3.6.2'}]}] Added Description 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. Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Added CWE CWE-22 Added Reference https://github.com/apostrophecms/apostrophe/commit/87cccf44a23d09420875ca8a3765eb3db843836a Added Reference https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-79qf-vqgc-7xx3 -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 17, 2026
Action Type Old Value New Value Added Reference https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-79qf-vqgc-7xx3 Added SSVC {'id': 'CVE-2026-63667', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-08-17T20:05:34.998193Z'}