The vulnerability of cloud-based software for creating and using Nextcloud Server and Nextcloud Enterprise Server allows attackers to gain unauthorized access to protected information, thereby enabling them to compromise the security of these systems.

The vulnerability of cloud-based software for creating and using Nextcloud Server and Nextcloud Enterprise Server relates to the insecure storage of confidential information. Exploiting this vulnerability can allow an attacker to gain unauthorized access to protected information...

The vulnerability of cloud software for creating and using Nextcloud Server’s data storage solution is related to improper access control, allowing attackers to gain access to confidential information.

The vulnerability of cloud-based software for creating and using Nextcloud Server storage solutions is related to improper access control. Exploiting this vulnerability can allow an attacker, operating remotely, to gain access to confidential information...

Nextcloud Server 28.x < 28.0.9, 29.x < 29.0.5 Access Control Vulnerability

Nextcloud Server is prone to an access control vulnerability. SPDX-FileCopyrightText: 2024 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 =...

Nextcloud Server 27.x < 27.1.10, 28.x < 28.0.6, 29.x < 29.0.1 Incomplete Sanitization Vulnerability

Nextcloud Server is prone to an incomplete sanitization vulnerability. SPDX-FileCopyrightText: 2024 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 =...

Nextcloud Server 27.x < 27.1.9, 28.x < 28.0.5 Access Control Vulnerability

Nextcloud Server is prone to an access control vulnerability. SPDX-FileCopyrightText: 2024 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 =...

Nextcloud Server 28.x < 28.0.11, 29.x < 29.0.8, 30.x < 30.0.1 Multiple Vulnerabilities

Nextcloud Server is prone to multiple vulnerabilities. SPDX-FileCopyrightText: 2024 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-2024-52520

Nextcloud Server is a self hosted personal cloud system. Due to a pre-flighted HEAD request, the link reference provider could be tricked into downloading bigger websites than intended, to find open-graph data. It is recommended that the Nextcloud Server is upgraded to 28.0.10 or 29.0.7 and...

CVE-2024-52523

Nextcloud Server is a self hosted personal cloud system. After setting up a user or administrator defined external storage with fixed credentials, the API returns them and adds them into the frontend again, allowing to read them in plain text when an attacker already has access to an active sessi...

CVE-2024-52516

Nextcloud Server is a self hosted personal cloud system. When a server is configured to only allow sharing with users that are in ones own groups, after a user was removed from a group, previously shared items were not unshared. It is recommended that the Nextcloud Server is upgraded to 22.2.11 o...

CVE-2024-52517

Nextcloud Server is a self hosted personal cloud system. After storing "Global credentials" on the server, the API returns them and adds them into the frontend again, allowing to read them in plain text when an attacker already has access to an active session of a user. It is recommended that the...

CVE-2024-52513 Nextcloud Server's Attachments folder for Text app is accessible on "Files drop" and "Password protected" shares

Nextcloud Server is a self hosted personal cloud system. After receiving a "Files drop" or "Password protected" share link a malicious user was able to download attachments that are referenced in Text files without providing the password. It is recommended that the Nextcloud Server is upgraded to...

CVE-2024-52515 Nextcloud Server has incomplete sanitization of SVG files allows to embed other images into previews

Nextcloud Server is a self hosted personal cloud system. After an admin enables the default-disabled SVG preview provider, a malicious user could upload a manipulated SVG file referencing paths. If the file would exist the preview of the SVG would preview the other file instead. It is recommended...

CVE-2024-52515

The CVE-2024-52515 entry concerns Nextcloud Server where, after an admin enables the default-disabled SVG preview provider, a malicious user could upload an SVG file that references paths, causing the preview to render another file’s contents. Technical details across connected sources confirm th...

CVE-2024-52515 Nextcloud Server has incomplete sanitization of SVG files allows to embed other images into previews

Nextcloud Server is a self hosted personal cloud system. After an admin enables the default-disabled SVG preview provider, a malicious user could upload a manipulated SVG file referencing paths. If the file would exist the preview of the SVG would preview the other file instead. It is recommended...

CVE-2024-52516 Nextcloud Server's shares are not removed when user is limited to share with in their groups and being removed from one of them

Nextcloud Server is a self hosted personal cloud system. When a server is configured to only allow sharing with users that are in ones own groups, after a user was removed from a group, previously shared items were not unshared. It is recommended that the Nextcloud Server is upgraded to 22.2.11 o...

CVE-2024-52517

CVE-2024-52517 affects Nextcloud Server (and Enterprise Server) where, after storing global credentials for external storage, the API returns them and injects them into the frontend, enabling plaintext read by someone with an active user session. This information disclosure risk is limited to use...

CVE-2024-52517 Nextcloud Server's global credentials of external storages are sent back to the frontend

Nextcloud Server is a self hosted personal cloud system. After storing "Global credentials" on the server, the API returns them and adds them into the frontend again, allowing to read them in plain text when an attacker already has access to an active session of a user. It is recommended that the...

CVE-2024-52518 Nextcloud Server is missing password confirmation when changing external storage options

Nextcloud Server is a self hosted personal cloud system. After an attacker got access to the session of a user or administrator, the attacker would be able to create, change or delete external storages without having to confirm the password. It is recommended that the Nextcloud Server is upgraded...

CVE-2024-52519

CVE-2024-52519 affects Nextcloud Server and Nextcloud Enterprise Server. The issue is that OAuth2 client secrets were stored in a recoverable form, enabling an attacker with access to a database backup and the Nextcloud config file to decrypt them. Public documentation in the provided sources rec...

CVE-2024-52520 Nextcloud Server's link reference provider can be tricked into downloading bigger files than intended

Nextcloud Server is a self hosted personal cloud system. Due to a pre-flighted HEAD request, the link reference provider could be tricked into downloading bigger websites than intended, to find open-graph data. It is recommended that the Nextcloud Server is upgraded to 28.0.10 or 29.0.7 and...