Executive Summary

Informations
Name CVE-2023-48239 First vendor Publication 2023-11-21
Vendor Cve Last vendor Modification 2024-11-21

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
Overall CVSS Score 7.1
Base Score 7.1 Environmental Score 7.1
impact SubScore 4.2 Temporal Score 7.1
Exploitabality Sub Score 2.8
 
Attack Vector Network Attack Complexity Low
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact Low Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 25.0.0 and prior to versions 25.0.13, 26.0.8, and 27.1.3 of Nextcloud Server and starting in version 20.0.0 and prior to versions 20.0.14.16, 21.0.9.13, 22.2.10.15, 23.0.12.12, 24.0.12.8, 25.0.13, 26.0.8, and 27.1.3 of Nextcloud Enterprise Server, a malicious user could update any personal or global external storage, making them inaccessible for everyone else as well. Nextcloud Server 25.0.13, 26.0.8, and 27.1.3 and Nextcloud Enterprise Server is upgraded to 20.0.14.16, 21.0.9.13, 22.2.10.15, 23.0.12.12, 24.0.12.8, 25.0.13, 26.0.8, and 27.1.3 contain a patch for this issue. As a workaround, disable app files_external. This workaround also makes the external storage inaccessible but retains the configurations until a patched version has been deployed.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-48239

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 35

Sources (Detail)

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-f96...
https://github.com/nextcloud/server/pull/41123
https://hackerone.com/reports/2212627
Source Url

Alert History

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Date Informations
2025-03-29 03:28:15
  • Multiple Updates
2025-03-28 13:38:45
  • Multiple Updates
2024-11-25 09:31:18
  • Multiple Updates
2024-08-02 13:53:01
  • Multiple Updates
2024-08-02 01:34:17
  • Multiple Updates
2024-02-02 02:49:53
  • Multiple Updates
2024-02-01 12:31:21
  • Multiple Updates
2023-11-29 09:27:27
  • Multiple Updates
2023-11-22 09:27:27
  • Multiple Updates
2023-11-22 00:27:23
  • First insertion