---
title: "CVE-2025-54127: NodeJS version of HAX CMS Has Insecure Default Configuration That Leads to Unauthenticated Access"
url: https://erroneo.us/security/cve/CVE-2025-54127/
description: "CVE-2025-54127 (@haxtheweb/haxcms-nodejs (npm)): HAXcms with nodejs backend allows users to start the server in any HAXsite or HAXcms instance. In versions…"
type: vulnerability-record
section: "Security Digest"
date_published: 2025-07-21
date_modified: 2025-07-22
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2025-54127"
kev: false
cvss: 9.3
epss: 0.0044
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2025-54127: NodeJS version of HAX CMS Has Insecure Default Configuration That Leads to Unauthenticated Access

**Signal:** Critical and remotely reachable. No known exploitation yet, but it is network-reachable without credentials. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Not in CISA KEV , but CISA’s SSVC assessment records a public proof-of-concept, so attack code exists.
- EPSS 0.4% , percentile 37: FIRST’s model estimates a 0.4% chance of exploitation activity in the next 30 days, higher than 37% of all scored CVEs (low). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes @haxtheweb/haxcms-nodejs (npm) <= 11.0.6, fixed in 11.0.7 . Check your lockfile, including transitive dependencies.

## What it is

HAXcms with nodejs backend allows users to start the server in any HAXsite or HAXcms instance. In versions 11.0.6 and below, the NodeJS version of HAXcms uses an insecure default configuration designed for local development. The default configuration does not perform authorization or authentication checks. If a user were to deploy haxcms-nodejs without modifying the default settings, ‘HAXCMSDISABLEJWTCHECKS‘ would be set to ‘true‘ and their deployment would lack session authentication. This is fixed in version 11.0.7.

## Affected packages

- npm `@haxtheweb/haxcms-nodejs` <= 11.0.6 → fixed: 11.0.7

## Affected products (CVE record)

- haxtheweb issues: < 11.0.7

## Severity

- GitHub_M CVSS 4.0: 9.3 `CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`
- GitHub CVSS 4.0: 9.3 `CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation poc , automatable no , technical impact partial .
- FIRST EPSS (model of 2026-10-21): 0.44% probability of exploitation activity in the next 30 days; percentile 37.

## Sources

- [GitHub Advisory GHSA-f38f-jvqj-mfg6](https://github.com/advisories/GHSA-f38f-jvqj-mfg6)
- [CVE.org record CVE-2025-54127](https://www.cve.org/CVERecord?id=CVE-2025-54127)
- [NVD entry CVE-2025-54127](https://nvd.nist.gov/vuln/detail/CVE-2025-54127)
- [github.com](https://github.com/haxtheweb/issues/security/advisories/GHSA-f38f-jvqj-mfg6)

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Source page: https://erroneo.us/security/cve/CVE-2025-54127/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt