CVE-2026-42853: Apostrophecms @apostrophecms/cli

Medium severity, CVSS 6.5. EPSS: 0.6% chance of exploitation in the next 30 days.

ApostropheCMS is an open-source Node.js content management system. Versions of the @apostrophecms/cli package up to and including 3.6.0 contain a command injection vulnerability in the apos create command. User-supplied input from the password prompt is embedded directly into a shell command without proper sanitization or escaping. This allows execution of arbitrary commands on the host system. As of time of publication, no known patched versions are available.

Affected products

• Apostrophecms @apostrophecms/cli: up to and including 3.6.0

Published 2026-06-12. Last modified 2026-06-17.