Improper access control in Nextcloud End-to-End Encryption - CVE-2023-35173
Published: June 23, 2023
Vulnerability identifier: #VU77664
CSH Severity: Medium
CVSS v4: 6.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-35173
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 user can provide an invalid meta data file and make previously dropped files inaccessible.
Affected software
Nextcloud End-to-End Encryption
How to mitigate CVE-2023-35173
Install updates from vendor's website.
Nextcloud End-to-End Encryption - update to 1.12.4