CVE-2026-48527

HighCVSS 8.7/10Last modified Jul 21, 2026

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.

Metrics

CVSS 3.1 8.7/10CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

Weakness enumeration

CWE-79

Affected software

No affected versions have been published.

Timeline

Published
May 29, 2026
Last modified
Jul 21, 2026
NVD status
Deferred

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CVE-2026-48527: High severity, CVSS 8.7 | Vulnix