CVE-2026-48527
HaxCMS has a stored Cross-Site Scripting (XSS) bypass in saveNode endpoint
HIGH 8.7EPSS 0.4%
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.
- Affected
- haxtheweb · haxcms-nodejs · haxcms-php
- CVSS v3.1 GITHUB
- 8.7 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N - EPSS
- 0.37% chance of exploitation in the next 30 days, 30th percentile
- Published
- 2026-05-29