CVE-2016-9461

Name: CVE-2016-9461
Creator: NVD / NIST
Published: 2017-03-28T02:59:00.84+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.00%

Last modified Jun 17, 2026

CVE-2016-9461 is a vulnerability of currently unknown severity. 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. EPSS estimates a 2.00% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

2.00%

78.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Nextcloud	Nextcloud Server	< 9.0.52
Owncloud	Owncloud	< 9.0.4

References

http://www.securityfocus.com/bid/97276Third Party Advisory, VDB Entry
https://github.com/nextcloud/server/commit/3491400261c1454a9a30d3ec96969573330120ccIssue Tracking, Patch, Third Party Advisory
https://github.com/owncloud/core/commit/0622e635d97cb17c5e1363e370bb8268cc3d2547Issue Tracking, Patch, Third Party Advisory
https://github.com/owncloud/core/commit/121a3304a0c37ccda0e1b63ddc528cba9121a36eIssue Tracking, Patch, Third Party Advisory
https://github.com/owncloud/core/commit/acbbadb71ceee7f01da347f7dcd519beda78cc47Issue Tracking, Patch, Third Party Advisory
https://github.com/owncloud/core/commit/c0a4b7b3f38ad2eaf506484b3b92ec678cb021c9Issue Tracking, Patch, Third Party Advisory
https://hackerone.com/reports/145950Exploit, Third Party Advisory
https://nextcloud.com/security/advisory/?id=nc-sa-2016-004Patch, Vendor Advisory
https://owncloud.org/security/advisory/?id=oc-sa-2016-014Patch, Vendor Advisory
http://www.securityfocus.com/bid/97276Third Party Advisory, VDB Entry
https://github.com/nextcloud/server/commit/3491400261c1454a9a30d3ec96969573330120ccIssue Tracking, Patch, Third Party Advisory
https://github.com/owncloud/core/commit/0622e635d97cb17c5e1363e370bb8268cc3d2547Issue Tracking, Patch, Third Party Advisory
https://github.com/owncloud/core/commit/121a3304a0c37ccda0e1b63ddc528cba9121a36eIssue Tracking, Patch, Third Party Advisory
https://github.com/owncloud/core/commit/acbbadb71ceee7f01da347f7dcd519beda78cc47Issue Tracking, Patch, Third Party Advisory
https://github.com/owncloud/core/commit/c0a4b7b3f38ad2eaf506484b3b92ec678cb021c9Issue Tracking, Patch, Third Party Advisory
https://hackerone.com/reports/145950Exploit, Third Party Advisory
https://nextcloud.com/security/advisory/?id=nc-sa-2016-004Patch, Vendor Advisory
https://owncloud.org/security/advisory/?id=oc-sa-2016-014Patch, Vendor Advisory

Timeline

Published: Mar 28, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-9461?

How severe is CVE-2016-9461?

Severity scoring for CVE-2016-9461 is pending analysis. The EPSS model estimates a 2.00% probability of exploitation in the next 30 days.

How do I fix CVE-2016-9461?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2016-9461?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST