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    CVE-2026-46376

    FreePBX is an open source IP PBX. From 15.0.42 to before 16.0.45 and 17.0.7, unauthenticated users may be able to access the User Control Panel (UCP) using hard-coded initial template credentials if these were not immediately changed by the Administrator who enabled UCP. Authenticated access to ACP is required for the initial setup of UCP generic templates, but after that, without further steps by the admin, unauthenticated users may be able to gain access. This vulnerability is fixed in 16.0.45 and 17.0.7.

    Published:May 29, 2026
    Last Modified:Jun 1, 2026
    EPS:May 29, 2026
    EPSS Score:0.00067
    CVSS Score:9.8

    Affected Products

    Vendor
    Freepbx
    Product
    Security-reporting
    Vendor
    Sangoma
    Product
    Freepbx

    Exploits

    https://github.com/portbuster1337/CVE-2026-46376

    Common Weakness Enumeration

    CWE-798 Use of Hard-coded Credentials

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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