{"id":"CVE-2016-9461","aliases":["EUVD-2016-10267","GHSA-92wm-vqxv-vpf9"],"status":"published","title":"Nextcloud Server before 9.0.52 \u0026 ownCloud Server before 9.0.4 are not properly verifying edit...","description":"Nextcloud Server before 9.0.52 \u0026 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.","severity":{"version":"3.0","score":4.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.02,"percentile":0.80898,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-275","CWE-284"],"published":"2017-03-28T02:46:00Z","modified":"2026-10-24T10:47:30Z","products":[{"vendor":"nextcloud","product":"nextcloud_server"},{"vendor":"owncloud","product":"owncloud"}],"references":[{"url":"https://owncloud.org/security/advisory/?id=oc-sa-2016-014","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory","fix"]},{"url":"https://nextcloud.com/security/advisory/?id=nc-sa-2016-004","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory","fix"]},{"url":"http://www.securityfocus.com/bid/97276","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry","advisory"]},{"url":"https://github.com/owncloud/core/commit/acbbadb71ceee7f01da347f7dcd519beda78cc47","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Patch","Third Party Advisory","fix"]},{"url":"https://github.com/owncloud/core/commit/c0a4b7b3f38ad2eaf506484b3b92ec678cb021c9","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Patch","Third Party Advisory","fix"]},{"url":"https://github.com/owncloud/core/commit/121a3304a0c37ccda0e1b63ddc528cba9121a36e","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Patch","Third Party Advisory","fix"]},{"url":"https://github.com/owncloud/core/commit/0622e635d97cb17c5e1363e370bb8268cc3d2547","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Patch","Third Party Advisory","fix"]},{"url":"https://hackerone.com/reports/145950","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence"]},{"url":"https://github.com/nextcloud/server/commit/3491400261c1454a9a30d3ec96969573330120cc","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Patch","Third Party Advisory","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-9461"},{"url":"https://github.com/advisories/GHSA-92wm-vqxv-vpf9"}],"sources":{"cve":[{"id":"CVE-2016-9461","description":"Nextcloud Server before 9.0.52 \u0026 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.","status":"published","published":"2017-03-28T02:46:00Z","modified":"2024-08-06T02:50:38.345Z","cwes":["CWE-275"],"updated_at":"2026-11-02T14:33:31.764001Z"}],"euvd":[{"id":"EUVD-2016-10267","description":"Nextcloud Server before 9.0.52 \u0026 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.","status":"published","published":"2017-03-28T02:46:00Z","modified":"2024-08-06T02:50:38Z","updated_at":"2026-11-03T02:22:27.235814Z"}],"ghsa":[{"id":"GHSA-92wm-vqxv-vpf9","title":"Nextcloud Server before 9.0.52 \u0026 ownCloud Server before 9.0.4 are not properly verifying edit...","description":"Nextcloud Server before 9.0.52 \u0026 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.","status":"published","published":"2022-05-13T01:38:33Z","modified":"2023-02-01T05:08:53Z","cvss":[{"version":"3.0","score":4.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"cwes":["CWE-284"],"updated_at":"2026-11-02T14:50:53.268012Z"}],"nvd":[{"id":"CVE-2016-9461","description":"Nextcloud Server before 9.0.52 \u0026 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.","status":"published","published":"2017-03-28T02:59:00.84Z","modified":"2026-06-17T00:56:06.84Z","cvss":[{"version":"3.0","score":4.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4,"vector":"AV:N/AC:L/Au:S/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-275","CWE-284"],"updated_at":"2026-11-02T14:03:37.238712Z"}],"osv":[{"id":"CVE-2016-9461","description":"Nextcloud Server before 9.0.52 \u0026 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.","status":"published","published":"2017-03-28T02:59:00.84Z","modified":"2026-10-24T10:47:30.473455614Z","cvss":[{"version":"3.0","score":4.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:03.472693Z"}]}}