Unspecified vulnerability in Nextcloud (CNVD-2021-39032)

Nextcloud is a set of open source self-hosted file synchronization and sharing communication application platform from Nextcloud, Germany. A security vulnerability exists in Nextcloud Server that can be exploited by an attacker to send a user ID to a lookup server when the user is not set to a...

Unspecified Vulnerability in Nextcloud (CNVD-2021-39030)

Nextcloud is a set of open source self-hosted file synchronization and sharing communication application platform from Nextcloud, Germany. A security vulnerability exists in Nextcloud Server that can be exploited by an attacker to access basic information about a server user by accessing a public...

Unspecified vulnerability in Nextcloud (CNVD-2021-39033)

Nextcloud is a set of open source self-hosted file synchronization and sharing communication application platform from Nextcloud, Germany. A security vulnerability exists in Nextcloud Server, which stems from the fact that when a sharing user opens the sharing panel and attempts to delete the...

Unspecified Vulnerability in Nextcloud (CNVD-2021-39031)

Nextcloud is a set of open source self-hosted file synchronization and sharing communication application platform from Nextcloud, Germany. A security vulnerability exists in Nextcloud Server that stems from a public link that can be added as a federated file share. An attacker could use this...

Nextcloud Resource Management Error Vulnerability

Nextcloud is a set of open source self-hosted file synchronization and sharing communication application platform from Nextcloud, Germany. A vulnerability exists in Nextcloud Resource Management Error Vulnerability. No detailed vulnerability details are provided at this time...

Nextcloud Access Control Error Vulnerability (CNVD-2021-39029)

Nextcloud is a set of open source self-hosted file synchronization and sharing communication application platform from Nextcloud, Germany. An access control error vulnerability exists in Nextcloud Mail versions prior to 1.4.3, and prior to 1.8.2, which can be exploited by an authenticated attacke...

Nextcloud: Download of file with arbitrary extension via injection into attachment header

Description ----------- When downloading mail attachments, the app fails to properly escape quotes in the content disposition header. Because of this, an attacker can send a victim a file with a benign extension such as .txt or .png which when downloaded will be stored with a malicious extension...

Nextcloud: Bypass of privacy filter / tracking pixel blocker

Description ------------ When the mail app receives inline images, it will block them for privacy reasons to prevent tracking pixels The images have been blocked to protect your privacy. This block works correctly for most remote resources in addition to images, remote CSS files, iframes, and som...

Nextcloud Server Multiple Vulnerabilities (May 2021)

Nextcloud Server is prone to multiple vulnerabilities. SPDX-FileCopyrightText: 2021 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-2021-32656

Nextcloud Server is a Nextcloud package that handles data storage. A vulnerability in federated share exists in versions prior to 19.0.11, 20.0.10, and 21.0.2. An attacker can gain access to basic information about users of a server by accessing a public link that a legitimate server user added a...

CVE-2021-32657

Nextcloud Server is a Nextcloud package that handles data storage. In versions of Nextcloud Server prior to 10.0.11, 20.0.10, and 21.0.2, a malicious user may be able to break the user administration page. This would disallow administrators to administrate users on the Nextcloud instance. The...

CVE-2021-32656

Nextcloud Server is a Nextcloud package that handles data storage. A vulnerability in federated share exists in versions prior to 19.0.11, 20.0.10, and 21.0.2. An attacker can gain access to basic information about users of a server by accessing a public link that a legitimate server user added a...

CVE-2021-32657

Nextcloud Server is a Nextcloud package that handles data storage. In versions of Nextcloud Server prior to 10.0.11, 20.0.10, and 21.0.2, a malicious user may be able to break the user administration page. This would disallow administrators to administrate users on the Nextcloud instance. The...

Command injection

Nextcloud Server is a Nextcloud package that handles data storage. In versions of Nextcloud Server prior to 10.0.11, 20.0.10, and 21.0.2, a malicious user may be able to break the user administration page. This would disallow administrators to administrate users on the Nextcloud instance. The...

Spoofing

Nextcloud Server is a Nextcloud package that handles data storage. A vulnerability in federated share exists in versions prior to 19.0.11, 20.0.10, and 21.0.2. An attacker can gain access to basic information about users of a server by accessing a public link that a legitimate server user added a...

CVE-2021-32656

Nextcloud Server is a Nextcloud package that handles data storage. A vulnerability in federated share exists in versions prior to 19.0.11, 20.0.10, and 21.0.2. An attacker can gain access to basic information about users of a server by accessing a public link that a legitimate server user added a...

CVE-2021-32657

CVE-2021-32657 affects Nextcloud Server: in versions prior to 10.0.11, 20.0.10, and 21.0.2, a malicious user could break the user administration page, preventing admins from managing users. The issue is fixed in 19.0.11, 20.0.10, and 21.0.2. As a workaround, administrators can use the OCC command...

CVE-2021-32657 Malicious user could break user administration page

Nextcloud Server is a Nextcloud package that handles data storage. In versions of Nextcloud Server prior to 10.0.11, 20.0.10, and 21.0.2, a malicious user may be able to break the user administration page. This would disallow administrators to administrate users on the Nextcloud instance. The...

CVE-2021-32656 Trusted servers exchange can be triggered by attacker

Nextcloud Server is a Nextcloud package that handles data storage. A vulnerability in federated share exists in versions prior to 19.0.11, 20.0.10, and 21.0.2. An attacker can gain access to basic information about users of a server by accessing a public link that a legitimate server user added a...

CVE-2021-32656

CVE-2021-32656 affects Nextcloud Server’s federated share feature. Prior to versions 19.0.11, 20.0.10, and 21.0.2, an attacker could access basic information about users by exploiting a public federated link added by a legitimate server user. This occurs because Nextcloud can share registered use...