CVE-2025-54134 HAX CMS NodeJs's Improper Error Handling Leads to Denial of Service
An authenticated attacker can crash the HAX CMS NodeJS application by sending API requests with missing URL parameters, causing a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-54134?
CVE-2025-54134 is a high-severity denial of service vulnerability in haxtheweb issues, published on 21 Jul 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
HAX CMS NodeJs allows users to manage their microsite universe with a NodeJs backend. In versions 11.0.8 and below, the HAX CMS NodeJS application crashes when an authenticated attacker provides an API request lacking required URL parameters. This vulnerability affects the listFiles and saveFiles endpoints. This vulnerability exists because the application does not properly handle exceptions which occur as a result of changes to user-modifiable URL parameters. This is fixed in version 11.0.9.
Which versions are affected by CVE-2025-54134?
2 open source packages ship an affected version, including @haxtheweb/haxcms-nodejs. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
@haxtheweb/haxcms-nodejs npm | All versions | 11.0.9 |
@haxtheweb/haxcms-nodejs npm | All versions | 11.0.9 |
Products include Psu Haxcms-Nodejs.
How do I fix CVE-2025-54134?
Upgrade @haxtheweb/haxcms-nodejs to 11.0.9 or later.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2025-54134 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-54134 exists.
Other vulnerabilities in haxtheweb issues
- CVE-2025-54127 HAXcms's Insecure Default Configuration Leads to Unauthenticated Access
- CVE-2025-49141 HaxCMS-PHP Command Injection Vulnerability
- CVE-2025-49137 Hax CMS Stored Cross-Site Scripting vulnerability
- CVE-2025-54378 HAX CMS Backend Lacks Comprehensive Authorization Checks
- CVE-2026-22704 HAXcms Has Stored XSS Vulnerability that May Lead to Account Takeover
Sources
Also known as GHSA-pjj3-j5j6-qj27.