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Medium

Security advisory

Type: advisorySources: OSVCVE: CVE-2016-9461

Nextcloud Server before 9.0.52 & ownCloud Server before 9.0.4 are not properly verifying edit check permissions on WebDAV copy actions. The WebDAV endpoint was not properly checking the permission on a WebDAV COPY action. This allowed an authenticated attacker with access to a read-only share to put new files in there. It was not possible to modify existing files.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2016-9461
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 08:27 UTC · Revision 1

Source evidence

CVE-2016-9461

core-osv · Original source

Published 28 Mar 2017, 02:59 UTC

Nextcloud Server before 9.0.52 & ownCloud Server before 9.0.4 are not properly verifying edit check permissions on WebDAV copy actions. The WebDAV endpoint was not properly checking the permission on a WebDAV COPY action. This allowed an authenticated attacker with access to a read-only share to put new files in there. It was not possible to modify existing files.

osv:CVE-2016-9461
Complete source record
{
  "id": "c378c6b8667dc97dd31e55070d53646748844daea872dc474c993cb3ceb4d7ed",
  "url": "https://osv.dev/vulnerability/CVE-2016-9461",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2016-9461",
    "summary": "Nextcloud Server before 9.0.52 & ownCloud Server before 9.0.4 are not properly verifying edit check permissions on WebDAV copy actions. The WebDAV endpoint was not properly checking the permission on a WebDAV COPY action. This allowed an authenticated attacker with access to a read-only share to put new files in there. It was not possible to modify existing files.",
    "evidence": "osv:CVE-2016-9461",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2016-9461",
      "aliases": [
        "CVE-2016-9461"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/nextcloud/server",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "6d9809ef452d73b53d3d70493d9a92ee64bd528f"
                },
                {
                  "fixed": "3491400261c1454a9a30d3ec96969573330120cc"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "9.0.52"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "3491400261c1454a9a30d3ec96969573330120cc"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v9.0.52RC1",
            "v9.0.51",
            "v9.0.50",
            "v9.0.2",
            "v9.0.2RC2",
            "v9.0.2RC1",
            "v9.0.1RC2",
            "v9.0.1",
            "v9.0.1RC1",
            "v9.0.1beta",
            "v9.0.0",
            "v9.0.0RC3",
            "v9.0.0RC2",
            "v9.0.0RC1",
            "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-2016-9461.json"
          }
        },
        {
          "ranges": [
            {
              "repo": "https://github.com/owncloud/core",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "6f4931a085bcd26346bdfdf7c5a6f832df78d473"
                },
                {
                  "fixed": "0622e635d97cb17c5e1363e370bb8268cc3d2547"
                },
                {
                  "fixed": "121a3304a0c37ccda0e1b63ddc528cba9121a36e"
                },
                {
                  "fixed": "acbbadb71ceee7f01da347f7dcd519beda78cc47"
                },
                {
                  "fixed": "c0a4b7b3f38ad2eaf506484b3b92ec678cb021c9"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:owncloud:owncloud:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "9.0.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "0622e635d97cb17c5e1363e370bb8268cc3d2547"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "121a3304a0c37ccda0e1b63ddc528cba9121a36e"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "acbbadb71ceee7f01da347f7dcd519beda78cc47"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "c0a4b7b3f38ad2eaf506484b3b92ec678cb021c9"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v9.0.4RC1",
            "v9.0.3",
            "v9.0.3RC1",
            "v9.0.2",
            "v9.0.2RC2",
            "v9.0.2RC1",
            "v9.0.1RC2",
            "v9.0.1",
            "v9.0.1RC1",
            "v9.0.1beta",
            "v9.0.0",
            "v9.0.0RC3",
            "v9.0.0RC2",
            "v9.0.0RC1",
            "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-2016-9461.json"
          }
        }
      ],
      "modified": "2026-10-24T10:47:30.473455614Z",
      "provider": "osv",
      "references": [
        "https://github.com/nextcloud/server/commit/3491400261c1454a9a30d3ec96969573330120cc",
        "https://github.com/owncloud/core/commit/0622e635d97cb17c5e1363e370bb8268cc3d2547",
        "https://github.com/owncloud/core/commit/121a3304a0c37ccda0e1b63ddc528cba9121a36e",
        "https://github.com/owncloud/core/commit/acbbadb71ceee7f01da347f7dcd519beda78cc47",
        "https://github.com/owncloud/core/commit/c0a4b7b3f38ad2eaf506484b3b92ec678cb021c9",
        "https://nextcloud.com/security/advisory/?id=nc-sa-2016-004",
        "https://owncloud.org/security/advisory/?id=oc-sa-2016-014",
        "https://hackerone.com/reports/145950"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:owncloud:owncloud:*:*:*:*:*:*:*:*"
            ],
            "vendor_product": "owncloud:owncloud",
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "9.0.4"
                  }
                ],
                "source": "CPE_RANGE"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2016-9461",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 441287,
  "published_at": "2017-03-28T02:59:00.84+00:00"
}