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    CVE-2018-5116

    WebExtensions with the "ActiveTab" permission are able to access frames hosted within the active tab even if the frames are cross-origin. Malicious extensions can inject frames from arbitrary origins into the loaded page and then interact with them, bypassing same-origin user expectations with this permission. This vulnerability affects Firefox < 58.

    Published:Jun 11, 2018
    Last Modified:Nov 21, 2024
    EPS:Jun 11, 2018
    EPSS Score:0.00567
    CVSS Score:9.8

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Mozilla
    Product
    Firefox

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-346 Origin Validation Error

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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