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    CVE-2024-21632

    omniauth-microsoft_graph provides an Omniauth strategy for the Microsoft Graph API. Prior to versions 2.0.0, the implementation did not validate the legitimacy of the `email` attribute of the user nor did it give/document an option to do so, making it susceptible to nOAuth misconfiguration in cases when the `email` is used as a trusted user identifier. This could lead to account takeover. Version 2.0.0 contains a fix for this issue.

    Published:Jan 2, 2024
    Last Modified:Jun 17, 2025
    EPS:Jan 2, 2024
    EPSS Score:0.00239
    CVSS Score:8.6

    Affected Products

    Vendor
    Recognizeapp
    Product
    Omniauth\

    Exploits

    https://www.descope.com/blog/post/noauthhttps://www.descope.com/blog/post/noauth

    Common Weakness Enumeration

    CWE-287 Improper Authentication

    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