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    CVE-2026-41228

    Froxlor is open source server administration software. Prior to version 2.3.6, the Froxlor API endpoint `Customers.update` (and `Admins.update`) does not validate the `def_language` parameter against the list of available language files. An authenticated customer can set `def_language` to a path traversal payload (e.g., `../../../../../var/customers/webs/customer1/evil`), which is stored in the database. On subsequent requests, `Language::loadLanguage()` constructs a file path using this value and executes it via `require`, achieving arbitrary PHP code execution as the web server user. Version 2.3.6 fixes the issue.

    Published:Apr 23, 2026
    Last Modified:Apr 27, 2026
    EPS:Apr 23, 2026
    EPSS Score:0.00055
    CVSS Score:10

    Affected Products

    Vendor
    Froxlor
    Product
    Froxlor

    Exploits

    https://github.com/froxlor/froxlor/security/advisories/GHSA-w59f-67xm-rxx7https://github.com/froxlor/froxlor/security/advisories/GHSA-w59f-67xm-rxx7

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-193 PHP Remote File Inclusion

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    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