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NuGet package

jellyfin.controller

Open actionable advisories and recorded vendor fixes. This public package view has no inventory attached and cannot establish whether your deployment is affected. A vendor fix never resolves your finding; verify your installed version and the source guidance.

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1 actionable advisory, newest first. Withdrawn advisories and news are excluded. Coverage is partial.

  1. High, CVSS 8.8NuGetPublished

    Directory traversal + file write causing arbitrary code execution

    CVE-2023-30626 · GHSA-9p5f-5x8v-x65m

    Affected
    • NuGet jellyfin.controller >= 10.8.0, < 10.8.10
    Fixed in
    10.8.10· Vendor fix available
    Issue
    Impact Frederic Linn (@FredericLinn) has reported a series of vulnerabilities that can result in directory traversal, file write, and potential remote code execution on Jellyfin instances. The general process involves chaining several exploits including a stored XSS vulnerability and can be used by an unprivileged user. The general process is (using the example of setting an intro video as the payload): Create a session as a low-priviledged user with a crafted authorization header Upload an executable that contains a malicious plugin inline via /ClientLog/Document (Admin hovers over our device in dashboard - XSS payload gets triggered) XSS Payload tries to set encoder path to our uploaded "log" file via /System/MediaEncoder/Path The request fails, but in the process our executable actually runs (I guess for verifying if the path points to a valid ffmpeg version) The executable will create a plugin folder and place the inlined plugin DLL inside it The XSS payload shuts down the server…

    Recommended action: Upgrade to 10.8.10 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:github.comSource checked Evidence →