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    CVE-2026-109321

    Grav Login OAuth plugin (grav-plugin-login-oauth) before 1.4.3 provisions OAuth accounts as ordinary Grav users with a deterministic <provider>.<id> username and an unsalted MD5 hash of the provider identifier as the password, without disabling password login. Unauthenticated remote attackers who learn or guess a provider identifier can reproduce these credentials and log in, gaining administrative control of privileged accounts.

    Published:Oct 12, 2026
    Last Modified:Oct 18, 2026
    EPS:Oct 12, 2026
    EPSS Score:0.00402
    CVSS Score:9.1

    Affected Products

    Vendor
    Getgrav
    Product
    Grav-plugin-login-oauth

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-1391 Use of Weak Credentials

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    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