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    CVE-2025-55076

    A local privilege escalation vulnerability exists in the InstallationHelper service included with Plugin Alliance Installation Manager v1.4.0 for macOS. The service accepts unauthenticated XPC connections and executes input via system(), which may allow a local user to execute arbitrary commands with root privileges.

    Published:Dec 3, 2025
    Last Modified:Dec 18, 2025
    EPS:Dec 3, 2025
    EPSS Score:0.00014
    CVSS Score:6.2

    Affected Products

    Vendor
    Apple
    Product
    Macos
    Vendor
    Plugin-alliance
    Product
    Installation Manager
    Vendor
    Plugin Alliance
    Product
    Installation Manager

    Exploits

    https://almightysec.com/plugin-alliance-helpertool-xpc-service-local-privilege-escalation/

    Common Weakness Enumeration

    CWE-269 Improper Privilege Management

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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