CVE-2025-49137: HAX CMS PHP allows users to manage their microsite universe with a PHP backend

Q: How do I fix CVE-2025-49137?

haxcms-nodejs: upgrade to 11.0.0; haxcms-php: upgrade to 11.0.0. Exact commands for each OS are on this page.

Q: Is CVE-2025-49137 being exploited?

CVE-2025-49137 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-49137 affect?

CVE-2025-49137 affects haxcms-nodejs, haxcms-php. Severity is high (CVSS 8.5). HAX CMS PHP allows users to manage their microsite universe with a PHP backend. Prior to version 11.0.0, the application does not sufficiently sanitize user input, allowing for the execution of arbitrary JavaScript code. The 'saveNode' and

Q: How urgent is CVE-2025-49137?

Priority 40/100. High severity; Public exploit reference

This month

HIGH 8.5UPGRADEUPGRADE

CVE-2025-49137 is a high-severity flaw (CVSS 8.5) affecting haxcms-nodejs, haxcms-php. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

HAX CMS PHP allows users to manage their microsite universe with a PHP backend. Prior to version 11.0.0, the application does not sufficiently sanitize user input, allowing for the execution of arbitrary JavaScript code. The 'saveNode' and 'saveManifest' endpoints take user input and store it in the JSON schema for the site. This content is then rendered in the generated HAX site. Although the application does not allow users to supply a `script`

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	8.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 80%)
CISA exploited list	No
Weakness	CWE-79, CWE-80, CWE-87
Published	2025-06-09
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: psu

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-06-09 21:15 UTCPublished CVE record published
2026-06-17 09:30 UTCUpdated Record last modified

psu haxcms-nodejs UPGRADE

Affected: < 11.0.0

Fixed in: 11.0.0

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls haxcms-nodejs

2. UPGRADE to 11.0.0

npm install haxcms-nodejs@">=11.0.0"

psu haxcms-php UPGRADE

Affected: < 11.0.0

Fixed in: 11.0.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy haxcms-php || rpm -q haxcms-php || haxcms-php --version

2. UPGRADE to 11.0.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade haxcms-php

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade haxcms-php

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-49137?

haxcms-nodejs: upgrade to 11.0.0; haxcms-php: upgrade to 11.0.0. Exact commands for each OS are on this page.

Is CVE-2025-49137 being exploited?

CVE-2025-49137 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-49137 affect?

CVE-2025-49137 affects haxcms-nodejs, haxcms-php. Severity is high (CVSS 8.5). HAX CMS PHP allows users to manage their microsite universe with a PHP backend. Prior to version 11.0.0, the application does not sufficiently sanitize user input, allowing for the execution of arbitrary JavaScript code. The 'saveNode' and

How urgent is CVE-2025-49137?

Priority 40/100. High severity; Public exploit reference

Software pages

Node.js vulnerabilities · PHP vulnerabilities

Related CVEs

CVE-2025-54378 HIGH 8.3 UPGRADE UPGRADE HAX CMS allows you to manage your microsite universe with PHP or NodeJs backends
CVE-2025-54139 MEDIUM 4.3 UPGRADE UPGRADE HAX CMS allows users to manage their microsite universe with a NodeJS or PHP backend
CVE-2025-54137 HIGH 7.3 UPGRADE HAX CMS NodeJS allows users to manage their microsite universe with a NodeJS backend
CVE-2025-54134 MEDIUM 6.5 UPGRADE HAX CMS NodeJs allows users to manage their microsite universe with a NodeJs backend
CVE-2025-54128 MEDIUM 6.1 UPGRADE HAX CMS NodeJs allows users to manage their microsite universe with a NodeJs backend

References

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