CVE-2023-48239

CWE-284 — Improper Access Control2 documents2 sources

Severity

7.1HIGH

EPSS

0.6%

top 31.06%

CISA KEV

Not in KEV

Exploit

No known exploits

Affected products

Nextcloud Nextcloud Server Nextcloud Security-advisories

Timeline

PublishedNov 21

Description

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…

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:HExploitability: 3.1 | Impact: 4.7

Affected Packages2 packages

▶NVDnextcloud/nextcloud_server20.0.0 — 20.0.14.16+7

▶CVEListV5nextcloud/security-advisories8 versions+7

Patches

Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

CVEList

Nextcloud Server users can make external storage mount points inaccessible for other users↗2023-11-21

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