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Medium

Security advisory

Type: advisorySources: OSVCVE: CVE-2017-0936

Nextcloud Server before 11.0.7 and 12.0.5 suffers from an Authorization Bypass Through User-Controlled Key vulnerability. A missing ownership check allowed logged-in users to change the scope of app passwords of other users. Note that the app passwords themselves where neither disclosed nor could the error be misused to identify as another user.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2017-0936
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 05:13 UTC · Revision 1

Source evidence

CVE-2017-0936

core-osv · Original source

Published 28 Mar 2018, 20:29 UTC

Nextcloud Server before 11.0.7 and 12.0.5 suffers from an Authorization Bypass Through User-Controlled Key vulnerability. A missing ownership check allowed logged-in users to change the scope of app passwords of other users. Note that the app passwords themselves where neither disclosed nor could the error be misused to identify as another user.

osv:CVE-2017-0936
Complete source record
{
  "id": "9eef445472514f8a8dbc167c6c6b170903c1936adbdd71afa93c80d4abefdd87",
  "url": "https://osv.dev/vulnerability/CVE-2017-0936",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2017-0936",
    "summary": "Nextcloud Server before 11.0.7 and 12.0.5 suffers from an Authorization Bypass Through User-Controlled Key vulnerability. A missing ownership check allowed logged-in users to change the scope of app passwords of other users. Note that the app passwords themselves where neither disclosed nor could the error be misused to identify as another user.",
    "evidence": "osv:CVE-2017-0936",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2017-0936",
      "aliases": [
        "CVE-2017-0936"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/nextcloud/server",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "b7e000da94043671ba3aea23d65e029f55299b83"
                },
                {
                  "introduced": "42633b4d024fdad5f79c045e52afcedfc6d80f3e"
                },
                {
                  "last_affected": "42633b4d024fdad5f79c045e52afcedfc6d80f3e"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "11.0.7"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:nextcloud:nextcloud_server:12.0.5:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "12.0.5"
                      },
                      {
                        "last_affected": "12.0.5"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "12.0.5",
            "v12.0.5",
            "v11.0.7RC3",
            "v11.0.7RC2",
            "v11.0.7RC1",
            "v11.0.6",
            "v11.0.6RC1",
            "v11.0.5",
            "v11.0.5RC1",
            "v11.0.4",
            "v11.0.4RC1",
            "v11.0.3",
            "v11.0.3RC2",
            "v11.0.3RC1",
            "v11.0.2",
            "v11.0.2RC1",
            "v11.0.1",
            "v11.0.1RC1",
            "v11.0.0",
            "v11.0RC2",
            "v9.1.0beta1",
            "v9.0.0beta2",
            "v9.0beta1",
            "v8.2RC1",
            "v8.2beta1",
            "v8.1RC2",
            "v8.1.0beta2",
            "v8.1.0beta1",
            "v8.1.0alpha2",
            "v8.1.0alpha1",
            "v8.0.0",
            "v8.0.0RC2",
            "v8.0.0RC1",
            "v8.0.0beta2",
            "v8.0.0beta1",
            "v8.0.0alpha2",
            "v8.0.0alpha1",
            "v7.0.0beta1",
            "v7.0.0alpha2",
            "v6.0.0RC2",
            "v6.0.0RC1",
            "v6.0.0beta5",
            "v6.0.0beta4",
            "v6.0.0beta3",
            "v6.0.0beta2",
            "v6.0.0alpha2",
            "v5.0.0",
            "v5.0.0RC3",
            "v5.0.0RC2",
            "v5.0.0RC1",
            "v5.0.0beta2",
            "v5.0.0beta1",
            "v5.0.0alpha1",
            "v4.5.0",
            "v4.5.0RC3",
            "v4.5.0RC2",
            "v4.5.0RC1",
            "v4.5.0beta4",
            "v4.5.0beta3",
            "v4.0.6",
            "v4.0.5",
            "v4.0.4",
            "v4.0.1",
            "v4.0.0",
            "v4.0.0RC2",
            "v4.0.0RC",
            "v4.0.0beta",
            "v3.0",
            "v1.0.0beta1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-0936.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:25.856801674Z",
      "provider": "osv",
      "references": [
        "https://hackerone.com/reports/297751",
        "https://nextcloud.com/security/advisory/?id=nc-sa-2018-001"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2017-0936",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 431462,
  "published_at": "2018-03-28T20:29:00.27+00:00"
}