@apostrophecms/cli: Command Injection in apos create via Unsanitized Password Input
Collected exploitation and prediction evidence
Risk source coverageCISA KEV is observed exploitation evidence. FIRST EPSS is a dated prediction of exploitation in the next 30 days. Missing scores are unknown. This collector requests predictions only for explicit CVE aliases in the public NuGet archive; Microsoft release views retain their existing prediction scope.
No collected risk observation for these identifiers. This does not establish absence of exploitation or a zero probability.
cve-program · CVE-2026-42853
PublishedApostropheCMS 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.
- Source published
- 12 Jun 2026 20:37:00 UTC
- Source modified
- 13 Jun 2026 03:34:34 UTC
- Observed here
- 23 Oct 2026 15:48:27 UTC
- Source terms
- CVE Program Terms of Use
Original source record · Cite this exact observation · Complete original publisher JSON
This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: cve-program · CVE Program Terms of Use. Source text is retained; field grouping and change labels are provided by ChangeIntel.
CVSS 3.1 · 6.5 CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
euvd · EUVD-2026-36565
PublishedApostropheCMS 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.
EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.
Original publisher date fields
datePublished: Jun 12, 2026, 8:37:00 PM
dateUpdated: Jun 13, 2026, 3:34:34 AM
- Source published
- Jun 12, 2026, 8:37:00 PM (timezone not stated)
- Source modified
- Jun 13, 2026, 3:34:34 AM (timezone not stated)
- Observed here
- 7 Nov 2026 09:35:58 UTC
- Source terms
- ENISA EUVD · source terms and attribution apply
Original source record · Cite this exact observation · Complete original publisher JSON
This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: euvd · ENISA EUVD · source terms and attribution apply. Source text is retained; field grouping and change labels are provided by ChangeIntel.
EUVD CVSS 3.1 · 6.5 CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
nvd · CVE-2026-42853
PublishedApostropheCMS 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.
NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.
Source analysis status: Deferred
Weakness classifications: CWE-78
Original publisher date fields
published: 2026-06-12T21:16:21.300
lastModified: 2026-10-26T11:10:00.157
- Source published
- 12 Jun 2026 21:16:21 UTC
- Source modified
- 26 Oct 2026 11:10:00 UTC
- Observed here
- 27 Oct 2026 11:12:04 UTC
- Source terms
- NIST NVD usage terms; underlying source attribution retained
Original source record · Cite this exact observation · Complete original publisher JSON
This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: nvd · NIST NVD usage terms; underlying source attribution retained. Source text is retained; field grouping and change labels are provided by ChangeIntel.
CVSS 3.1 · [email protected] · Secondary · 6.5 CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
osv · GHSA-hcwq-x9fw-8cfq
PublishedSummary The @apostrophecms/cli package contains 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. ━━━━━━━━━━━━━━━━━━━━━━ Details Vulnerable file: lib/commands/create.js Location: Line 186 The CLI collects a password using an interactive prompt and passes it directly into a shell command. Vulnerable code: const response = await prompts({ type: 'password', name: 'pw', message: '🔏 Please enter a password:' }); exec(echo "${response.pw}" | ${createUserCommand}); The value of response.pw is not validated, sanitized, or escaped before being used in exec(). This allows shell metacharacters such as ;, &&, and $() to break out of the intended command and execute arbitrary commands. ━━━━━━━━━━━━━━━━━━━━━━ Steps to Reproduce 1) Install the CLI npm install -g @apostrophecms/cli 2) Create a new project mkdir testproject && cd testproject apos create mysite 3)When prompted for the admin password, enter "; id > /tmp/apos_rce_proof.txt; echo " 4)Verify command execution cat /tmp/apos_rce_proof.txt ━━━━━━━━━━━━━━━━━━━━━━ Proof of Concept Output uid=1000(vboxuser) gid=1000(vboxuser) groups=1000(vboxuser),27(sudo),984(docker) This confirms arbitrary command execution with the privileges of the user running the CLI. ━━━━━━━━━━━━━━━━━━━━━━ Impact Arbitrary command execution on the developer’s machine Execution occurs with the privileges of the user running the CLI This can lead to: File modification or deletion Credential exposure System compromise depending on user privileges An attacker can exploit this by influencing the password input (for example, through social engineering, malicious documentation, or compromised automation scripts). The proof-of-concept shows execution under a user belonging to privileged groups such as sudo and docker, which may allow further privilege escalation depending on system configuration. ━━━━━━━━━━━━━━━━━━━━━━ Suggested Fix Avoid using exec() with user-controlled input. Use execFile() instead: const { execFileSync } = require('child_process'); execFileSync('node', [appJsPath, userTask, 'admin', 'admin'], { input: response.pw + '\n' }); ━━━━━━━━━━━━━━━━━━━━━━ Affected Version All current versions of @apostrophecms/cli ━━━━━━━━━━━━━━━━━━━━━━ Tested On Ubuntu 22.04 Node.js v18.19.1 ━━━━━━━━━━━━━━━━━━━━━━ CWE CWE-78 — Improper Neutralization of Special Elements used in an OS Command ━━━━━━━━━━━━━━━━━━━━━━
- Source published
- 14 May 2026 16:16:16 UTC
- Source modified
- 10 Sep 2026 03:50:47 UTC
- Observed here
- 24 Oct 2026 13:17:17 UTC
- Source terms
- GitHub Advisory Database · CC-BY-4.0
Original source record · Cite this exact observation · Complete original publisher JSON
This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · GitHub Advisory Database · CC-BY-4.0. Source text is retained; field grouping and change labels are provided by ChangeIntel.
CVSS_V3 · CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
Publisher rating · MODERATE