Nextcloud Server 24.x < 24.0.10, 25.x < 25.0.4 Multiple Vulnerabilities (GHSA-h3c9-cmh8-7qpj, GHSA-ch7f-px7m-hg25, GHSA-5w64-6c42-rgcv, GHSA-7w2p-rp9m-9xp9)

Nextcloud Server is prone to multiple vulnerabilities. SPDX-FileCopyrightText: 2023 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only CPE = "cpe:/a:nextcloud:nextcloudserver"...

CVE-2023-28833

CVE-2023-28833 affects Nextcloud Server’s theming feature where admins can upload a logo or favicon with unrestricted filenames, enabling overwriting files in the appdata directory. Root cause: lack of filename validation for logo/favicon uploads. Impact: potential data modification via file over...

CVE-2023-28833 Unrestricted filenames for logo or favicon as admin in the theming settings in nextcloud server

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...