PT-2026-42040 · Npm+1 · @Haxtheweb/Haxcms-Nodejs+1

Published 2026-05-19 · Updated 2026-06-06 · CVE-2026-46357

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions HAX CMS versions prior to 26.0.0

Description The NodeJS application crashes when an authenticated attacker sends a specially crafted site creation request to the 'createSite' endpoint. This occurs because the createSite function passes a file object lacking the originalname property to the HAXCMSFile.save() function, which attempts to dereference it using .replace(), resulting in a TypeError. A single request is sufficient to take the entire application offline, requiring a manual server restart to restore service.

Recommendations Update to version 26.0.0.

Exploit

Fix

DoS

NULL Pointer Dereference

RCE

Weakness Enumeration

CWE-476

CWE-20

Related Identifiers

CVE-2026-46357

GHSA-9R33-XHW8-4QQP

Affected Products

@Haxtheweb/Haxcms-Nodejs

Haxcms-Nodejs

References · 7

• 🔥 https://github.com/haxtheweb/issues/security/advisories/GHSA-9r33-xhw8-4qqp · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-46357 · Security Note
• https://osv.dev/vulnerability/GHSA-9r33-xhw8-4qqp · Vendor Advisory
• https://github.com/haxtheweb/issues · Note
• https://twitter.com/VulmonFeeds/status/2063068287852798139 · Twitter Post
• https://twitter.com/CVEnew/status/2063205011090247798 · Twitter Post
• https://t.me/CVEtracker/56011 · Telegram Post