Improper access control in Nextcloud Server - CVE-2021-32657
Published: June 7, 2021
Vulnerability identifier: #VU53828
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-32657
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to improper access restrictions. A remote authenticated attacker can break the user administration page.
Affected software
Nextcloud Server
How to mitigate CVE-2021-32657
Install updates from vendor's website.
Nextcloud Server - addressed in versions 19.0.11, 20.0.10, 21.0.2