{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "5.2.22"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "da4d701808c3af4100bd1f2d7f0fd07854267fa9"
            }
          ],
          "repo": "https://github.com/horde/horde",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "Horde Groupware v5.2.22 has a user enumeration vulnerability that allows an unauthenticated attacker to determine the existence of valid accounts on the system. To exploit the vulnerability, an HTTP request must be sent to ‘/imp/attachment.php’ including the parameters ‘id’ and ‘u’. If the specified user exists, the server will return the download of an empty file; if it does not exist, no download will be initiated, which unequivocally reveals the validity of the user.",
  "id": "CVE-2025-41066",
  "modified": "2026-03-10T21:48:40.145183952Z",
  "published": "2025-12-02T14:16:24.910Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.incibe.es/en/incibe-cert/notices/aviso/disclosure-sensitive-information-horde-groupware"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}