CVE-2016-9464

MEDIUM

Nextcloud Server < 9.0.54 and 10.0.0 - Improper Authorization in Sharing Backend

Title source: llm
STIX 2.1

Description

Nextcloud Server before 9.0.54 and 10.0.0 suffers from an improper authorization check on removing shares. The Sharing Backend as implemented in Nextcloud does differentiate between shares to users and groups. In case of a received group share, users should be able to unshare the file to themselves but not to the whole group. The previous API implementation simply unshared the file to all users in the group.

References (7)

Core 7
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/97287
Patch, Vendor Advisory x_refsource_misc
https://nextcloud.com/security/advisory/?id=nc-sa-2016-007
Exploit, Third Party Advisory x_refsource_misc
https://hackerone.com/reports/153905

Scores

CVSS v3 4.3
EPSS 0.0162
EPSS Percentile 73.0%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Details

CWE
CWE-285
Status published
Products (3)
n/a/Nextcloud Server Nextcloud Server before 9.0.54 and 10.0.0 Nextcloud Server Nextcloud Server before 9.0.54 and 10.0.0
nextcloud/nextcloud_server 10.0 rc1
nextcloud/nextcloud_server < 9.0.54
Published Mar 28, 2017
Tracked Since Feb 18, 2026