CVE-2026-46357: Haxtheweb Haxcms-Node.js

Medium severity, CVSS 6.5. EPSS: 0.4% chance of exploitation in the next 30 days.

HAX CMS helps manage microsite universe with PHP or NodeJs backends. Prior to version 26.0.0, the HAX CMS NodeJS application crashes when an authenticated attacker sends a specially crafted site creation request to the createSite endpoint. A single request is sufficient to take the entire application offline, requiring a manual server restart to restore service. Version 26.0.0 fixes the issue.

Affected products

• Haxtheweb Haxcms-Node.js: before 26.0.0 (fixed in 26.0.0)

Published 2026-06-05. Last modified 2026-07-23.