CVE-2026-42853: CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in apostrophecms @apostrophecms/cli
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.
AI Analysis
Technical Summary
CVE-2026-42853 is an OS command injection vulnerability (CWE-78) in the @apostrophecms/cli package used by ApostropheCMS. Specifically, the 'apos create' command improperly handles user-supplied input from the password prompt by embedding it directly into a shell command without escaping or sanitization. This flaw enables an attacker with appropriate privileges to execute arbitrary commands on the host system. The vulnerability affects versions up to and including 3.6.0. As of the publication date, no official fix or patch has been released.
Potential Impact
Successful exploitation allows an attacker with local privileges and user interaction to execute arbitrary commands with the privileges of the user running the CLI. This can lead to full compromise of confidentiality, integrity, and availability of the affected system. The CVSS 3.1 score is 6.5 (medium severity), reflecting the requirement for local access and user interaction but high impact if exploited.
Mitigation Recommendations
No official patch or fix is currently available. Users should avoid running the vulnerable 'apos create' command with untrusted input or in untrusted environments. Monitor the vendor advisory for updates regarding patches or official remediation. Until a fix is released, exercise caution with the CLI tool and restrict access to trusted users only.
CVE-2026-42853: CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in apostrophecms @apostrophecms/cli
Description
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.
CVSS v3.1
Score 6.5medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-42853 is an OS command injection vulnerability (CWE-78) in the @apostrophecms/cli package used by ApostropheCMS. Specifically, the 'apos create' command improperly handles user-supplied input from the password prompt by embedding it directly into a shell command without escaping or sanitization. This flaw enables an attacker with appropriate privileges to execute arbitrary commands on the host system. The vulnerability affects versions up to and including 3.6.0. As of the publication date, no official fix or patch has been released.
Potential Impact
Successful exploitation allows an attacker with local privileges and user interaction to execute arbitrary commands with the privileges of the user running the CLI. This can lead to full compromise of confidentiality, integrity, and availability of the affected system. The CVSS 3.1 score is 6.5 (medium severity), reflecting the requirement for local access and user interaction but high impact if exploited.
Mitigation Recommendations
No official patch or fix is currently available. Users should avoid running the vulnerable 'apos create' command with untrusted input or in untrusted environments. Monitor the vendor advisory for updates regarding patches or official remediation. Until a fix is released, exercise caution with the CLI tool and restrict access to trusted users only.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-04-30T16:44:48.378Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a2c7589e617e2d834c30b5f
Added to database: 6/12/2026, 9:09:29 PM
Last enriched: 6/12/2026, 9:25:12 PM
Last updated: 6/13/2026, 6:24:16 AM
Views: 7
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