CVE-2026-48527
HaxCMS has a stored Cross-Site Scripting (XSS) bypass in saveNode endpoint
CVSS Score
8.7
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-79 |
| Vendor | haxtheweb |
| Product | haxcms-nodejs |
| Published | May 29, 2026 |
| Last Updated | May 29, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
None
Affected Versions
haxtheweb / haxcms-nodejs
< 26.0.1
haxtheweb / haxcms-php
< 26.0.2