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    CVE-2025-14440

    The JAY Login & Register plugin for WordPress is vulnerable to authentication bypass in versions up to, and including, 2.4.01. This is due to incorrect authentication checking in the 'jay_login_register_process_switch_back' function with the 'jay_login_register_process_switch_back' cookie value. This makes it possible for unauthenticated attackers to log in as any existing user on the site, such as an administrator, if they have access to the user id.

    Published:Dec 13, 2025
    Last Modified:Apr 21, 2026
    EPS:Dec 13, 2025
    EPSS Score:0.00145
    CVSS Score:9.8

    Affected Products

    Vendor
    Wordpress
    Product
    Wordpress

    Exploits

    https://github.com/Nxploited/CVE-2025-14440

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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