Improper access control in Nextcloud Server and Nextcloud Enterprise Server - CVE-2023-25161
Published: February 22, 2023
Vulnerability identifier: #VU72493
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-25161
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 in the password reset functionality. A remote attacker can send lots of emails, leading to service slowdown, storage overflow and cost impact when using external email services.
How to mitigate CVE-2023-25161
Install updates from vendor's website.