CVE-2026-48527 Details
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.
A stored cross-site scripting vulnerability has been identified in HAX CMS versions up to and including 26.0.0. The issue resides in the '/system/api/saveNode' endpoint, where an authenticated user with page editing permissions can bypass the HTML sanitizer. This is achieved by injecting an event handler attribute without a preceding whitespace, allowing malicious JavaScript to be executed when the injected link is clicked.
Users can update to @haxtheweb/haxcms-nodejs version 26.0.1 or haxcms-php version 26.0.2 to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed May 29, 2026CISA-ADP
Assessed May 29, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/haxtheweb/issues/security/advisories/GHSA-g2g8-95qg-v35h | CISA-ADP | AdvisoryExploitRemedyVendor |
| https://github.com/haxtheweb/issues/security/advisories/GHSA-g2g8-95qg-v35h | [email protected] | AdvisoryExploitRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-79 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| HAX CMS | <= 26.0.0 (semver) |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 21, 2026 | CVE Translated | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 29, 2026 | CVE Modified | CISA-ADP |
| May 29, 2026 | New CVE Received | [email protected] |
Volerion