Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2023-48239 |
CWE-ID | CWE-284 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
Nextcloud Enterprise Server Client/Desktop applications / Messaging software Nextcloud Server Client/Desktop applications / Messaging software |
Vendor | Nextcloud |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
EUVDB-ID: #VU83360
Risk: Medium
CVSSv3.1: 7.4 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2023-48239
CWE-ID:
CWE-284 - Improper Access Control
Exploit availability: No
DescriptionThe 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 update any personal or global external storage and make them inaccessible for everyone else as well.
MitigationInstall updates from vendor's website.
Vulnerable software versionsNextcloud Enterprise Server: 20.0.0 - 27.1.2
Nextcloud Server: 25.0.0 - 27.1.2
External linkshttp://github.com/nextcloud/security-advisories/security/advisories/GHSA-f962-hw26-g267
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.