{
  "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-2023-25820",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-25820",
    "idYear": 2023,
    "status": "PUBLISHED",
    "publishedAt": "2023-03-22T18:22:54.139Z",
    "updatedAt": "2025-02-25T14:51:54.712Z",
    "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": "Nextcloud Server and Enterprise Server missing brute force protection on password confirmation modal",
      "summary": "Nextcloud Server is the file server software for Nextcloud, a self-hosted productivity platform, and Nextcloud Enterprise Server is the enterprise version of the file server software. In Nextcloud Server versions 25.0.x prior to 25.0.5 and versions 24.0.x prior to 24.0.10 as well as Nextcloud Enterprise Server versions 25.0.x prior to 25.0.4, 24.0.x prior to 24.0.10, 23.0.x prior to 23.0.12.5, 22.x prior to 22.2.0.10, and 21.x prior to 21.0.9.10, when an attacker gets access to an already logged in user session they can then brute force the password on the confirmation endpoint. Nextcloud Server should upgraded to 24.0.10 or 25.0.4 and Nextcloud Enterprise Server should upgraded to 21.0.9.10, 22.2.10.10, 23.0.12.5, 24.0.10, or 25.0.4 to receive a patch. No known workarounds are available.",
      "affected": [
        {
          "vendor": "nextcloud",
          "product": "security-advisories",
          "versions": [
            {
              "version": "Nextcloud Server >= 24.0.0, < 24.0.10",
              "status": "affected"
            },
            {
              "version": "Nextcloud Server >= 25.0.0, < 25.0.4",
              "status": "affected"
            },
            {
              "version": "Nextcloud Enterprise Server >= 25.0.0, < 25.0.4",
              "status": "affected"
            },
            {
              "version": "Nextcloud Enterprise Server >= 24.0.0, < 24.0.10",
              "status": "affected"
            },
            {
              "version": "Nextcloud Enterprise Server >= 23.0.0, < 23.0.12.5",
              "status": "affected"
            },
            {
              "version": "Nextcloud Enterprise Server >= 22.0.0, < 22.2.10.10",
              "status": "affected"
            },
            {
              "version": "Nextcloud Enterprise Server >= 21.0.0, < 21.0.9.10",
              "status": "affected"
            }
          ]
        }
      ]
    }
  }
}