Vulnerability from bitnami_vulndb
Published
2024-03-06 10:56
Modified
2026-09-08 08:34
Summary
Mastodon vulnerable to arbitrary file creation through media attachments
Details

Mastodon is a free, open-source social network server based on ActivityPub. Starting in version 3.5.0 and prior to versions 3.5.9, 4.0.5, and 4.1.3, attackers using carefully crafted media files can cause Mastodon's media processing code to create arbitrary files at any location. This allows attackers to create and overwrite any file Mastodon has access to, allowing Denial of Service and arbitrary Remote Code Execution. Versions 3.5.9, 4.0.5, and 4.1.3 contain a patch for this issue.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "mastodon",
        "purl": "pkg:bitnami/mastodon"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.5.0"
            },
            {
              "fixed": "3.5.9"
            },
            {
              "introduced": "4.0.0"
            },
            {
              "fixed": "4.0.5"
            },
            {
              "introduced": "4.1.0"
            },
            {
              "fixed": "4.1.3"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-36460"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:joinmastodon:mastodon:*:*:*:*:*:*:*:*"
    ],
    "severity": "Critical"
  },
  "details": "Mastodon is a free, open-source social network server based on ActivityPub. Starting in version 3.5.0 and prior to versions 3.5.9, 4.0.5, and 4.1.3, attackers using carefully crafted media files can cause Mastodon\u0027s media processing code to create arbitrary files at any location. This allows attackers to create and overwrite any file Mastodon has access to, allowing Denial of Service and arbitrary Remote Code Execution. Versions 3.5.9, 4.0.5, and 4.1.3 contain a patch for this issue.",
  "id": "BIT-mastodon-2023-36460",
  "modified": "2026-09-08T08:34:36.952Z",
  "published": "2024-03-06T10:56:36.008Z",
  "references": [
    {
      "type": "DISCUSSION",
      "url": "http://www.openwall.com/lists/oss-security/2023/07/06/4"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/mastodon/mastodon/commit/dc8f1fbd976ae544720a4e07120d9a91b2722440"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/mastodon/mastodon/releases/tag/v3.5.9"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/mastodon/mastodon/releases/tag/v4.0.5"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/mastodon/mastodon/releases/tag/v4.1.3"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/mastodon/mastodon/security/advisories/GHSA-9928-3cp5-93fm"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-36460"
    }
  ],
  "schema_version": "1.5.0",
  "summary": "Mastodon vulnerable to arbitrary file creation through media attachments"
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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