CVSS 3.0
4.3 mediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:NCVE-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.
Severity
- EPSS
- 2.0% chance of exploitation in the next 30 days; higher than 80% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-284, CWE-275
- Published
- Modified
- Record from
- the NVD, synced
Affected
- nextcloud:nextcloud_server
- owncloud:owncloud
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