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    CVE-2025-59547

    DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. Prior to version 10.1.0, the CKEditor file upload endpoint has insufficient sanitization for filenames allowing probing network endpoints. A specially crafted request can be made to upload a file with Unicode characters, which would be translated into a path that could expose resources in the internal network of the hosted site. This issue has been patched in version 10.1.0.

    Published:Sep 23, 2025
    Last Modified:Sep 29, 2025
    EPS:Sep 23, 2025
    EPSS Score:0.00046
    CVSS Score:5.3

    Affected Products

    Vendor
    Dnnsoftware
    Product
    Dnn Platform
    Vendor
    Dnnsoftware
    Product
    Dotnetnuke

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-71 Using Unicode Encoding to Bypass Validation Logic

    Related CVEs

    CVE-2026-40321 (CVSS 8) — DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. …
    CVE-2026-40306 (CVSS 6.9) — DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. …
    CVE-2026-40305 (CVSS 4.3) — DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. …
    CVE-2026-24838 (CVSS 9.1) — DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. …
    CVE-2026-24837 (CVSS 7.6) — DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. …
    CVE-2026-24836 (CVSS 7.6) — DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. …
    CVE-2026-24833 (CVSS 7.6) — DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. …
    CVE-2026-24784 (CVSS 6.8) — DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. …
    CVE-2025-64095 (CVSS 10) — DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. …
    CVE-2025-64094 (CVSS 6.4) — DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. …

    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