CVE-2026-63667: CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in apostrophecms apostrophe
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.
AI Analysis
Technical Summary
CVE-2026-63667 is a path traversal vulnerability (CWE-22) in ApostropheCMS's import-export module (packages/import-export/lib/formats/gzip.js). The module constructs attachment source paths from user-controlled fields (_id, name, extension) in aposAttachments.json without validating that the resolved path remains within the intended attachments directory. This allows an authenticated contributor to import a specially crafted archive, read arbitrary host files with allowed extensions, and publish those files at an unauthenticated uploads URL. The vulnerability is fixed in ApostropheCMS version 3.6.2.
Potential Impact
An authenticated contributor can exploit this vulnerability to read arbitrary files on the host system that have allowed extensions and publish them to a location accessible without authentication. This could lead to unauthorized disclosure of sensitive information. There is no indication of impact on integrity or availability.
Mitigation Recommendations
Upgrade ApostropheCMS to version 3.6.2 or later, where this vulnerability is fixed. Patch status is confirmed by the vendor stating the issue is resolved in 3.6.2. No other mitigation is indicated.
CVE-2026-63667: CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in apostrophecms apostrophe
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.
CVSS v3.1
Score 6.5medium
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-63667 is a path traversal vulnerability (CWE-22) in ApostropheCMS's import-export module (packages/import-export/lib/formats/gzip.js). The module constructs attachment source paths from user-controlled fields (_id, name, extension) in aposAttachments.json without validating that the resolved path remains within the intended attachments directory. This allows an authenticated contributor to import a specially crafted archive, read arbitrary host files with allowed extensions, and publish those files at an unauthenticated uploads URL. The vulnerability is fixed in ApostropheCMS version 3.6.2.
Potential Impact
An authenticated contributor can exploit this vulnerability to read arbitrary files on the host system that have allowed extensions and publish them to a location accessible without authentication. This could lead to unauthorized disclosure of sensitive information. There is no indication of impact on integrity or availability.
Mitigation Recommendations
Upgrade ApostropheCMS to version 3.6.2 or later, where this vulnerability is fixed. Patch status is confirmed by the vendor stating the issue is resolved in 3.6.2. No other mitigation is indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-07-17T14:47:08.032Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a836787bf8831d5397b9a39
Added to database: 08/17/2026, 19:56:55 UTC
Last enriched: 08/17/2026, 20:16:42 UTC
Last updated: 08/17/2026, 20:26:55 UTC
Views: 4
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