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

9.4CRITICAL

Key Information:

Vendor

Haxtheweb

Status
Haxcms-nodejs
Haxcms-PHP
Vendor
CVE Published:
5 June 2026

What is CVE-2026-46399?

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.

Affected Version(s)

haxcms-nodejs < 26.0.0

haxcms-php < 26.0.0

References

https://github.com/haxtheweb/issues/security/advisories/G...
x_refsource_CONFIRM

CVSS V4

Score:
9.4
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.