CVEvulnerability

CVE-2023-39962

7.7 HIGH Published 2023-08-10 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2023-08-10
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.7 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
CVSS 3.1 ([email protected])
7.7 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Weaknesses
CWE-284

Description

Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 19.0.0 and prior to versions 19.0.13.10, 20.0.14.15, 21.0.9.13, 22.2.10.14, 23.0.12.8, 24.0.12.5, 25.0.9, 26.0.4, and 27.0.1, a malicious user could delete any personal or global external storage, making them inaccessible for everyone else as well. Nextcloud server versions 25.0.9, 26.0.4, and 27.0.1 and Nextcloud Enterprise Server versions 19.0.13.10, 20.0.14.15, 21.0.9.13, 22.2.10.14, 23.0.12.9, 24.0.12.5, 25.0.9, 26.0.4, and 27.0.1 contain a patch for this issue. As a workaround, disable app files_external. This also makes the external storage inaccessible but retains the configurations until a patched version has been deployed.

Affected configurations

• nextcloud nextcloud server (>= 19.0.0 < 19.0.13.10) • nextcloud nextcloud server (>= 20.0.0 < 20.0.14.15) • nextcloud nextcloud server (>= 21.0.0 < 21.0.9.13) • nextcloud nextcloud server (>= 22.0.0 < 22.2.10.14) • nextcloud nextcloud server (>= 23.0.0 < 23.0.12.9) • nextcloud nextcloud server (>= 24.0.0 < 24.0.12.5) • nextcloud nextcloud server (>= 25.0.0 < 25.0.9) • nextcloud nextcloud server (>= 26.0.0 < 26.0.4) • nextcloud nextcloud server 27.0.0

Related

Weakness · CWE (1)

  • CWE-284 Improper Access Control weakness

References