Description
HAX CMS helps manage microsite universe with PHP or NodeJs backends. Versions up to and including 26.0.0 are affected by a stored cross-site scripting (XSS) vulnerability in the `/system/api/saveNode` endpoint. An authenticated user with a permission to edit pages can bypass the HTML sanitizer by injecting an event handler attribute without whitespace before the attribute name. @haxtheweb/haxcms-nodejs 26.0.1 and haxcms-php 26.0.2 patch the issue.
Published: 2026-05-29
Score: 8.7 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
Github GHSA Github GHSA GHSA-g2g8-95qg-v35h HaxCMS has a stored Cross-Site Scripting (XSS) bypass in its saveNode endpoint
History

Fri, 29 May 2026 13:45:00 +0000

Type Values Removed Values Added
First Time appeared Haxtheweb
Haxtheweb haxcms-nodejs
Haxtheweb haxcms-php
Vendors & Products Haxtheweb
Haxtheweb haxcms-nodejs
Haxtheweb haxcms-php

Fri, 29 May 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 29 May 2026 12:45:00 +0000

Type Values Removed Values Added
Description HAX CMS helps manage microsite universe with PHP or NodeJs backends. Versions up to and including 26.0.0 are affected by a stored cross-site scripting (XSS) vulnerability in the `/system/api/saveNode` endpoint. An authenticated user with a permission to edit pages can bypass the HTML sanitizer by injecting an event handler attribute without whitespace before the attribute name. @haxtheweb/haxcms-nodejs 26.0.1 and haxcms-php 26.0.2 patch the issue.
Title HaxCMS has a stored Cross-Site Scripting (XSS) bypass in saveNode endpoint
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 8.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N'}


Subscriptions

Haxtheweb Haxcms-nodejs Haxcms-php
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-05-29T13:02:50.194Z

Reserved: 2026-05-21T16:18:10.619Z

Link: CVE-2026-48527

cve-icon Vulnrichment

Updated: 2026-05-29T13:02:37.548Z

cve-icon NVD

Status : Deferred

Published: 2026-05-29T13:16:23.133

Modified: 2026-05-29T16:29:11.350

Link: CVE-2026-48527

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-29T13:30:44Z

Weaknesses