Improper access control in Nextcloud Server and Nextcloud Enterprise Server - CVE-2023-25821
Published: February 27, 2023
Vulnerability identifier: #VU72577
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2023-25821
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Nextcloud
Affected software:
Nextcloud Server
Nextcloud Enterprise Server
Nextcloud Server
Nextcloud Enterprise Server
Detailed vulnerability description
The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to improper access restrictions within download permissions. A remote user can can circumvent secure view for internal shares.
How to mitigate CVE-2023-25821
Install updates from vendor's website.