CVE-2023-28833

Katalog CVE

CVSS 8.8 · High EPSS 0,76%

Kerentanan Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') pada nextcloud server. Skor CVSS 3.1 8.8 (High) menurut NVD.

Deskripsi (NVD)

Nextcloud server is an open source home cloud implementation. In affected versions admins of a server were able to upload a logo or a favicon and to provided a file name which was not restricted and could overwrite files in the appdata directory. Administrators may have access to overwrite these files by other means but this method could be exploited by tricking an admin into uploading a maliciously named file. It is recommended that the Nextcloud Server is upgraded to 24.0.10 or 25.0.4. Users unable to upgrade should avoid ingesting logo files from untrusted sources.

Rincian

Terbit di NVD

30 Maret 2023

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

8.8 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-434: Unrestricted Upload of File with Dangerous Type

EPSS (30 hari)

0,76% peluang dieksploitasi; lebih tinggi dari 54,1% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-ch7f-px7m-hg25 advisory vendor
• https://github.com/nextcloud/server/pull/36095 issue tracking · patch