6.5

CVE-2026-42853: apostrophecms @apostrophecms/cli OS Command Injection

CVSS: 6.5v3.1MediumDeferred
AliasesGHSA-hcwq-x9fw-8cfq
Published 12-06-2026Last modified 13-06-2026
Open JSON

Vulnerability summary

CVE-2026-42853 is a medium (CVSS 6.5) OS Command Injection vulnerability in apostrophecms @apostrophecms/cli. EPSS estimates a 0.62% chance of exploitation in the next 30 days, higher than 48.8% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.62%
0%100%
Low · +0.19 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 12-06-2026
    PublishedVulnerability first disclosed.
  2. 13-06-2026
    Last modifiedVulnerability information updated.

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 metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.62%

Chance of exploitation in the next 30 days

Percentile

49%

Versus all other CVEs

30-day change

+0.19 pp

From 0.43% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.62%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

@apostrophecms1 product
  • cli≤ 3.6.0
Apostrophecms1 product

2 vendors · 2 products

References

3 links