CVE Feed

    Dashboard / CVE / CVE-2016-9461

    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.

    Published:Mar 28, 2017
    Last Modified:Apr 20, 2025
    EPS:Mar 28, 2017
    EPSS Score:0.0076
    CVSS Score:4.3

    Affected Products

    Vendor
    Nextcloud
    Product
    Nextcloud Server
    Vendor
    Owncloud
    Product
    Owncloud

    Exploits

    https://hackerone.com/reports/145950https://hackerone.com/reports/145950

    Common Weakness Enumeration

    CWE-284 Improper Access Control

    Related CVEs

    CVE-2026-45810 (CVSS 6.8) — Nextcloud is an open source content collaboration platform. In Nextcloud Server from versions 31.0.0 to before…
    CVE-2026-45691 (CVSS 5.9) — Nextcloud is an open source content collaboration platform. In Nextcloud Server from versions 32.0.0 to before…
    CVE-2026-45690 (CVSS 5.9) — Nextcloud is an open source content collaboration platform. In Nextcloud Server from versions 32.0.0 to before…
    CVE-2026-45285 (CVSS 6.4) — Nextcloud is an open source content collaboration platform. From versions 32.0.0 to before 32.0.9, and 33.0.0 …
    CVE-2026-45283 (CVSS 6.3) — Nextcloud is an open source content collaboration platform. In Nextcloud Server from versions 32.0.0 to before…
    CVE-2026-45282 (CVSS 6.5) — Nextcloud is an open source content collaboration platform. In Nextcloud Server from versions 32.0.0 to before…
    CVE-2026-45281 (CVSS 8.1) — Nextcloud is an open source content collaboration platform. In Nextcloud Server from versions 32.0.0 to before…
    CVE-2026-45279 (CVSS 4.4) — Nextcloud is an open source content collaboration platform. In Nextcloud Server from versions 31.0.0 to before…
    CVE-2026-45157 (CVSS 6.3) — Nextcloud is an open source content collaboration platform. In Nextcloud Server from versions 32.0.0 to before…
    CVE-2025-64011 (CVSS 4.3) — Nextcloud Server 30.0.0 is vulnerable to an Insecure Direct Object Reference (IDOR) in the /core/preview endpo…

    References

    http://www.securityfocus.com/bid/97276
    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://hackerone.com/reports/145950
    https://nextcloud.com/security/advisory/?id=nc-sa-2016-004
    https://owncloud.org/security/advisory/?id=oc-sa-2016-014
    http://www.securityfocus.com/bid/97276
    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://hackerone.com/reports/145950
    https://nextcloud.com/security/advisory/?id=nc-sa-2016-004
    https://owncloud.org/security/advisory/?id=oc-sa-2016-014

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High