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    CVE-2026-109206

    LogicalDOC Community Edition through 9.3 contains a username enumeration vulnerability that allows unauthenticated attackers to identify valid accounts because the AvatarServlet (/avatar) performs no session validation. Attackers can supply usernames or numeric IDs in the userId parameter and compare 1x1 transparent images against real avatars to enumerate users and retrieve profile pictures.

    Published:Oct 12, 2026
    Last Modified:Oct 13, 2026
    EPS:Oct 12, 2026
    EPSS Score:0.00248
    CVSS Score:5.3

    Affected Products

    Vendor
    Logicaldoc
    Product
    Logicaldoc

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-204 Observable Response Discrepancy

    Related CVEs

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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