CVE-2026-46399 CRITICAL

CVE-2026-46399: Authenticated Remote Code Execution via File Overwrite

Vendor Haxtheweb
Product haxcms-nodejs
Weakness CWE-15
Published June 5, 2026
Last update June 8, 2026
View on NVD All CVEs

CVSS base score

9.4/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

What the vulnerability does

01Description

HAX CMS helps manage microsite universe with PHP or NodeJs backends. The PHP version of HAX CMS prior to version 26.0.0 has an authenticated file overwrite vulnerability. An attacker can exploit this vulnerability to configure malicious Git filter commands and achieve code execution on the HAX CMS server. Version 26.0.0 patches the issue.

Key dates

02Disclosure timeline

June 5, 2026 CVE published
June 8, 2026 Record updated