CVE-2026-46394: HAX the Web HAXcms OS command injection in Git.php

CVE-2026-46394 · Severity: info · CVSS 7.7 · Published 2026-06-05

HAXcms is a content management system used to build and manage microsites. A security flaw in its PHP backend allows an attacker with low-level access to execute unauthorized commands on the underlying server. This could lead to a total system takeover, allowing attackers to steal sensitive data, delete files, or disrupt website operations.

Technologies: HAX the Web HAXcms. Vendors: HAX the Web.

Quick answers

Is CVE-2026-46394 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-46394 being exploited in the wild.
How severe is CVE-2026-46394?
Informational severity, with a CVSS score of 7.7, published 5 June 2026.
Which products and versions are affected?
HAX the Web HAXcms < 26.0.0.
Is there a fix for CVE-2026-46394?
A patch was published on 2026-06-05: Version 26.0.0 released to address the vulnerability Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-46394 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-46394?
Check whether you run HAX the Web HAXcms at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

An OS command injection vulnerability exists in the Git.php library of the HAXcms PHP backend due to improper neutralization of shell metacharacters. The application constructs shell command strings by concatenating unsanitized input and executing them via proc_open(). While 17 functions invoke shell commands, only the commit() function correctly utilizes escapeshellarg(). An attacker with low-privileged access who can influence Git parameters—potentially through configuration poisoning or other vulnerabilities—can execute arbitrary OS commands with the privileges of the web server. This issue is patched in version 26.0.0.

Affected products

  • HAX the Web HAXcms PHP backend < 26.0.0

Timeline

  • 2026-05-12: advisory: Vendor advisory published on GitHub
  • 2026-06-05: disclosed: CVE published to NVD
  • 2026-06-05: patched: Version 26.0.0 released to address the vulnerability

References

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