CVE-2023-26482

Katalog CVE

CVSS 8.8 · High EPSS 4,2%

Kerentanan Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') 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 a missing scope validation allowed users to create workflows which are designed to be only available for administrators. Some workflows are designed to be RCE by invoking defined scripts, in order to generate PDFs, invoking webhooks or running scripts on the server. Due to this combination depending on the available apps the issue can result in a RCE at the end. It is recommended that the Nextcloud Server is upgraded to 24.0.10 or 25.0.4. Users unable to upgrade should disable app `workflow_scripts` and `workflow_pdf_converter` as a mitigation.

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:L/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

EPSS (30 hari)

4,2% peluang dieksploitasi; lebih tinggi dari 90,6% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-h3c9-cmh8-7qpj advisory vendor
• https://github.com/nextcloud/server/commit/5a06b50b10cc9278bbe68bbf897a0c4aeb0c4e60 patch