VULNERABILITY INTELLIGENCE
CVE-2016-9461
CVSS score4.3 MEDIUM
EPSS probability2.00%
CISA KEVNot currently listed
Published2017-03-28
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Description
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.
Weakness classification
- CWE-284: Improper Access Control
Primary references
- support@hackerone.com — Third Party Advisory, VDB Entry
- support@hackerone.com — Issue Tracking, Patch, Third Party Advisory
- support@hackerone.com — Issue Tracking, Patch, Third Party Advisory
- support@hackerone.com — Issue Tracking, Patch, Third Party Advisory
- support@hackerone.com — Issue Tracking, Patch, Third Party Advisory
- support@hackerone.com — Issue Tracking, Patch, Third Party Advisory
- support@hackerone.com — Exploit, Third Party Advisory
- support@hackerone.com — Patch, Vendor Advisory
- support@hackerone.com — Patch, Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory, VDB Entry
- af854a3a-2127-422b-91ae-364da2661108 — Issue Tracking, Patch, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Issue Tracking, Patch, Third Party Advisory