Is CVE-2016-9461 actively exploited?

CVE-2016-9461 has no public evidence of in-the-wild exploitation as of 2025-04-20.

What is the CVSS score for CVE-2016-9461?

CVE-2016-9461 has a CVSS score of 4.3 (MEDIUM severity). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

How do I patch CVE-2016-9461?

Patch guidance is available from nextcloud security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2016-9461.

CVE-2016-9461 - remediation guidance & executive summary

Q: Which products are affected by CVE-2016-9461?

2 products: nextcloud nextcloud server, owncloud owncloud.

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.

CVSS Metrics

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Attack Vector: network
Complexity: low
Privileges: low
User Action: none
Scope: unchanged
Confidentiality: none
Integrity: low
Availability: none
Weaknesses: CWE-275 CWE-284

Metadata

Primary Vendor: NEXTCLOUD
Published: 3/28/2017
Last Modified: 4/20/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2016-9461

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary