Exposure of Resource to Wrong Sphere in Nextcloud Server - CVE-2020-8121
Published: February 4, 2020 / Updated: July 17, 2020
Vulnerability identifier: #VU30386
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-8121
CWE-ID:
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote authenticated user to read and manipulate data.
A bug in Nextcloud Server 14.0.4 could expose more data in reshared link shares than intended by the sharer.
Affected software
Nextcloud Server
How to mitigate CVE-2020-8121
Install update from vendor's website.
Nextcloud Server - update to 15.0.0