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    CVE-2021-47755

    Oliver Library Server v5 contains a file download vulnerability that allows unauthenticated attackers to access arbitrary system files through unsanitized input in the FileServlet endpoint. Attackers can exploit the vulnerability by manipulating the 'fileName' parameter to download sensitive files from the server's filesystem.

    Published:Jan 15, 2026
    Last Modified:Apr 7, 2026
    EPS:Jan 15, 2026
    EPSS Score:0.00059
    CVSS Score:7.5

    Affected Products

    Vendor
    Softlinkint
    Product
    Oliver Library Server
    Vendor
    Softlinkint
    Product
    Oliver V5 Library

    Exploits

    https://www.exploit-db.com/exploits/50599https://www.exploit-db.com/exploits/50599

    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