{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "0.12.4"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "0f3eb10fc6b1294cefabea7341a40b46f86cd563"
            }
          ],
          "repo": "https://github.com/owncloud/guests",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "ownCloud Guests before 0.12.5 allows unauthenticated user enumeration via the /apps/guests/register/{email}/{token} endpoint. Because of insufficient validation of the supplied token in showPasswordForm, the server responds differently when an e-mail address corresponds to a valid pending guest user rather than a non-existent user.",
  "id": "CVE-2025-59716",
  "modified": "2026-03-10T21:49:38.468129621Z",
  "published": "2025-11-05T17:15:44.800Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://marketplace.owncloud.com/apps/guests"
    },
    {
      "type": "REPORT",
      "url": "https://yeswehack.com/reports/411806"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/owncloud/guests"
    },
    {
      "type": "EVIDENCE",
      "url": "https://gist.github.com/thesmartshadow/64ae0449e909174d0479a4f23657147f"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}