Authenticated Remote Code Execution via File Overwrite

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Summary

CVECVE-2026-46399
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-05 19:16:33 UTC
Updated2026-06-08 17:16:50 UTC
DescriptionHAX 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.

Risk And Classification

Primary CVSS: v4.0 9.4 CRITICAL from [email protected]

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS: 0.000790000 probability, percentile 0.236220000 (date 2026-06-14)

Problem Types: CWE-15 | CWE-73 | CWE-78 | CWE-15 CWE-15: External Control of System or Configuration Setting | CWE-73 CWE-73: External Control of File Name or Path | CWE-78 CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary9.4CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/C...
4.0CNADECLARED9.4CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
None
Confidentiality
High
Integrity
High
Availability
High
Sub Conf.
High
Sub Integrity
High
Sub Availability
High

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Haxtheweb Haxcms-nodejs affected < 26.0.0 Not specified
CNA Haxtheweb Haxcms-php affected < 26.0.0 Not specified

References

ReferenceSourceLinkTags
github.com/haxtheweb/issues/security/advisories/GHSA-q759-vxg8-vq5j 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com
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