ApostropheCMS: Arbitrary file read via import-export attachment-name path traversal — GHSA-79QF-VQGC-7XX3

Summary

## Summary The `@apostrophecms/import-export` module reconstructs the on-disk source path of every imported attachment from JSON metadata contained in the uploaded archive. The archive carries an `aposAttachments.json` file whose `name` and `extension` fields are concatenated into a filesystem path with no traversal check. The zip-slip guard that the module applies during tar extraction validates tar entry names…

Timeline

Published by source

2026-09-02

Risk context

• Reported severity or threat level: medium.
• Reported CVSS score: 6.5 out of 10.
• Reported EPSS value: 0.00341.
• Review exposure for the affected product or family: npm: @apostrophecms/import-export.

Product

npm: @apostrophecms/import-export

What to do

General, cautious steps (verify details in the official source):

• Review exposure and plan remediation based on risk and environment.
• Identify affected product versions in your inventory and verify whether you are impacted.
• Apply vendor patches/updates or recommended mitigations as soon as available.
• Read the official advisory for exact affected versions and remediation steps.

Official advisory

• Read the official source
• CVE Record
• NVD

Evidence and provenance

Canonical advisory ID

GHSA-79QF-VQGC-7XX3

Source

GitHub

Vendor

GitHub

Published by source

2026-09-02

Last source activity

2026-09-02

Additional identifiers

CVE-2026-63667

Curated by

hlukh.ch

Related advisories and connections

These advisories are connected by shared CVE, product, vendor, source, or time signals.