CVE-2026-48527

HIGH

HAX CMS saveNode Endpoint - Stored Cross-Site Scripting

Title source: manual
STIX 2.1

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.

References (1)

Core 1
Core References

Scores

CVSS v3 8.7
EPSS 0.0023
EPSS Percentile 13.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

CWE
CWE-79
Status published
Products (3)
haxtheweb/haxcms-nodejs 0 - 26.0.1npm
haxtheweb/haxcms-nodejs < 26.0.1
haxtheweb/haxcms-php < 26.0.2
Published May 29, 2026
Tracked Since May 29, 2026