CVE-2016-9462 json
Nextcloud Server before 9.0.52 & ownCloud Server before 9.0.4 are not properly verifying restore privileges when restoring a file.
published 2017-03-28 9 y ago modified 2026-06-17 4 mo ago also EUVD-2016-10268
- cvss
- 4.3
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.9%
- EPSS 1.9% chance of exploitation in 30 days, percentile 79%
- public exploits
- 0
- none known
Summary
Nextcloud Server before 9.0.52 & ownCloud Server before 9.0.4 are not properly verifying restore privileges when restoring a file. The restore capability of Nextcloud/ownCloud was not verifying whether a user has only read-only access to a share. Thus a user with read-only access was able to restore old versions.
Patch / fix
- nextcloud nextcloud_server 9.0.52
- owncloud owncloud 9.0.4
- github.com/nextcloud/server@1208953 commit
- github.com/owncloud/core@c93eca4 commit
- github.com/owncloud/core@3b056fa commit
- github.com/owncloud/core@d31720b commit
- github.com/owncloud/core@2338308 commit
- owncloud.org/security/advisory/?id=oc-sa-2016-015 advisory
- nextcloud.com/security/advisory/?id=nc-sa-2016-005 advisory
Exploit prediction
1.87% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- hackerone.com https://hackerone.com/reports/146067 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 4.3 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
| NVD | 2.0 | 4.0 | AV:N/AC:L/Au:S/C:N/I:P/A:N |
Affected products
- n/a Nextcloud Server & ownCloud Server Nextcloud Server before 9.0.52 & ownCloud Server before 9.0.4
Classification
References
-
github.com
/nextcloud/server/commit/1208953ba1d4d55a18a639846bbcdd66a2d5bc5e
issue-tracking, patch, third-party-advisory
-
github.com
/owncloud/core/commit/c93eca49c32428ece03dd67042772d5fa62c8d6e
issue-tracking, patch, third-party-advisory
-
github.com
/owncloud/core/commit/3b056fa68ce502ceb0db9b446dab3b9e7b10dd13
issue-tracking, patch, third-party-advisory
-
github.com
/owncloud/core/commit/d31720b6f1e8c8dfeb5e8805ab35ad7c8000b2f1
issue-tracking, patch, third-party-advisory
-
github.com
/owncloud/core/commit/23383080731d092e079986464a8c4c9ffcb79f4c
issue-tracking, patch, third-party-advisory
-
owncloud.org
/security/advisory/?id=oc-sa-2016-015
patch, vendor-advisory
-
nextcloud.com
/security/advisory/?id=nc-sa-2016-005
patch, vendor-advisory
-
hackerone.com
/reports/146067
exploit, third-party-advisory
-
securityfocus.com
/bid/97285
vdb-entry, third-party-advisory
Sources
- CVE List CVE-2016-9462
- NVD CVE-2016-9462
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.