{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2023-30539",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-30539",
    "idYear": 2023,
    "status": "PUBLISHED",
    "publishedAt": "2023-04-17T21:27:29.405Z",
    "updatedAt": "2025-02-05T20:38:48.283Z",
    "importedAt": "2026-10-24T01:56:53.804Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "Users can set up workflows using restricted and invisible system tags in Nextcloud",
      "summary": "Nextcloud is a personal home server system. Depending on the set up tags and other workflows this issue can be used to limit access of others or being able to grant them access when there are system tag based files access control or files retention rules. It is recommended that the Nextcloud Server is upgraded to 24.0.11 or 25.0.5, the Nextcloud Enterprise Server to 21.0.9.11, 22.2.10.11, 23.0.12.6, 24.0.11 or 25.0.5, and the Nextcloud Files automated tagging app to 1.11.1, 1.12.1, 1.13.1, 1.14.2, 1.15.3 or 1.16.1. Users unable to upgrade should disable all workflow related apps. Users are advised to upgrade.",
      "affected": [
        {
          "vendor": "nextcloud",
          "product": "security-advisories",
          "versions": [
            {
              "version": "Nextcloud Server: < 24.0.11",
              "status": "affected"
            },
            {
              "version": "Nextcloud Server: >= 25.0.0, < 25.0.5",
              "status": "affected"
            },
            {
              "version": "Nextcloud Files automated tagging: >= 1.11.0, < 1.11.1",
              "status": "affected"
            },
            {
              "version": "Nextcloud Files automated tagging: >= 1.12.0, < 1.12.1",
              "status": "affected"
            },
            {
              "version": "Nextcloud Files automated tagging: >= 1.13.0, < 1.13.1",
              "status": "affected"
            },
            {
              "version": "Nextcloud Files automated tagging: >= 1.14.0, < 1.14.2",
              "status": "affected"
            },
            {
              "version": "Nextcloud Files automated tagging: >= 1.15.0, < 1.15.3",
              "status": "affected"
            },
            {
              "version": "Nextcloud Files automated tagging: >= 1.16.0, < 1.16.1",
              "status": "affected"
            }
          ]
        }
      ]
    }
  }
}