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    CVE-2026-46400

    HAX CMS helps manage microsite universe with PHP or NodeJs backends. Starting in version 11.0.6 and prior to version 25.0.0, the file upload functionality in HAXCMS PHP only validates file extensions using a regex pattern without checking the actual file content or MIME type. This allows attackers to upload malicious files (e.g., PHP webshells) disguised as legitimate image files, potentially leading to remote code execution. Version 25.0.0 contains a fix for the issue.

    Published:Jun 5, 2026
    Last Modified:Jun 8, 2026
    EPS:Jun 5, 2026
    EPSS Score:0.00321
    CVSS Score:8.7

    Affected Products

    Vendor
    Haxtheweb
    Product
    Haxcms-php

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs

    Related CVEs

    CVE-2026-46493 (CVSS 7.5) — HAX CMS helps manage microsite universe with PHP or NodeJs backends. Versions prior to 26.0.1 use `uniqid` for…
    CVE-2026-46398 (CVSS 8.8) — HAX CMS helps manage microsite universe with PHP or NodeJs backends. Starting in version 25.0.0 and prior to v…
    CVE-2026-46397 (CVSS 6.5) — HAX CMS helps manage microsite universe with PHP or NodeJs backends. Prior to version 26.0.0, an Authenticated…
    CVE-2026-46511 (CVSS 8.7) — HAX CMS helps manage microsite universe with PHP or NodeJs backends. Prior to version 26.0.0, an attack chain …
    CVE-2026-46394 (CVSS 7.7) — HAX CMS helps manage microsite universe with PHP or NodeJs backends. Prior to version 26.0.0, an OS command in…
    CVE-2026-46393 (CVSS 7.1) — HAX CMS helps manage microsite universe with PHP or NodeJs backends. An authenticated Server-Side Request Forg…
    CVE-2026-46392 (CVSS 8.7) — HAX CMS helps manage microsite universe with PHP or NodeJs backends. Prior to version 26.0.0 of HAX CMS PHP, t…
    CVE-2026-46390 (CVSS 6.9) — HAX CMS helps manage microsite universe with PHP or NodeJs backends. Starting in version 2.0.0 and prior to ve…
    CVE-2026-46399 (CVSS 9.4) — HAX CMS helps manage microsite universe with PHP or NodeJs backends. The PHP version of HAX CMS prior to versi…
    CVE-2026-48527 (CVSS 8.7) — HAX CMS helps manage microsite universe with PHP or NodeJs backends. Versions up to and including 26.0.0 are a…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High