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CVE-2024-52510

Nextcloud Desktop client behaves incorrectly if the initial end-to-end-encryption signature is empty

The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server with your computer. The Desktop client did not stop with an error but allowed by-passing the signature validation, if a manipulated server sends an empty initial signature. It is recommended that the Nextcloud Desktop client is upgraded to 3.14.2 or later.

CVSS 3.1 · 4.2 Medium EPSS < 1% KEV · Not listed
Vendors
Nextcloud
Products
Desktop
CVE-2024-52512

Nextcloud User OIDC has an open redirection when logging in with User OIDC

user_oidc app is an OpenID Connect user backend for Nextcloud. A malicious user could send a malformed login link that would redirect the user to a provided URL after successfully authenticating. It is recommended that the Nextcloud User OIDC app is upgraded to 6.1.0.

CVSS 3.1 · 3.3 Low EPSS < 1% KEV · Not listed
Vendors
Nextcloud
Products
User Oidc
CVE-2024-37312

Nextcloud user_oidc app's ID4me feature is available even when disabled

user_oidc app is an OpenID Connect user backend for Nextcloud. Missing access control on the ID4me endpoint allows an attacker to register an account eventually getting access to data that is available to all registered users. It is recommended that the OpenID Connect user backend is upgraded to 3.0.0 (Nextcloud 20-23), 4.0.0 (Nexcloud 24) or 5.0.0 (Nextcloud 25-28).

CVSS 3.1 · 6.3 Medium EPSS < 1% KEV · Not listed
Vendors
Nextcloud
Products
User Oidc
CVE-2024-37886

Nextcloud user_oidc's ID4me does not validate signature or expiration

user_oidc app is an OpenID Connect user backend for Nextcloud. An attacker could potentially trick the app into accepting a request that is not signed by the correct server. It is recommended that the Nextcloud user_oidc app is upgraded to 1.3.5, 2.0.0, 3.0.0, 4.0.0 or 5.0.0.

CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed
Vendors
Nextcloud
Products
Nextcloud User Oidc
CVE-2023-48239

Nextcloud Server users can make external storage mount points inaccessible for other users

Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 25.0.0 and prior to versions 25.0.13, 26.0.8, and 27.1.3 of Nextcloud Server and starting in version 20.0.0 and prior to versions 20.0.14.16, 21.0.9.13, 22.2.10.15, 23.0.12.12, 24.0.12.8, 25.0.13, 26.0.8, and 27.1.3 of Nextcloud Enterprise Server, a malicious user could update any personal or global external storage, making them inaccessible for everyone else as well. Nextcloud Server 25.0.13, 26.0.8, and 27.1.3 and Nextcloud Enterprise Server is upgraded to 20.0.14.16, 21.0.9.13, 22.2.10.15, 23.0.12.12, 24.0.12.8, 25.0.13, 26.0.8, and 27.1.3 contain a patch for this issue. As a workaround, disable app files_external. This workaround also makes the external storage inaccessible but retains the configurations until a patched version has been deployed.

CVSS 3.1 · 8.5 High EPSS < 1% KEV · Not listed
Vendors
Nextcloud
Products
Nextcloud Server
CVE-2024-22402

Improper handling of request URLs in Nextcloud Guests app allows guest users to bypass app allowlist

Nextcloud guests app is a utility to create guest users which can only see files shared with them. In affected versions users were able to load the first page of apps they were actually not allowed to access. Depending on the selection of apps installed this may present a permissions bypass. It is recommended that the Guests app is upgraded to 2.4.1, 2.5.1 or 3.0.1. There are no known workarounds for this vulnerability.

CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed
Vendors
Nextcloud
Products
Guests
CVE-2024-22404

Permissions bypass in Nextcloud with the files zip app

Nextcloud files Zip app is a tool to create zip archives from one or multiple files from within Nextcloud. In affected versions users can download "view-only" files by zipping the complete folder. It is recommended that the Files ZIP app is upgraded to 1.2.1, 1.4.1, or 1.5.0. Users unable to upgrade should disable the file zip app.

CVSS 3.1 · 4.1 Medium EPSS < 1% KEV · Not listed
Vendors
Nextcloud
Products
Zipper
CVE-2024-30247

Command Injection as root in NextCloudPi web panel

NextcloudPi is a ready to use image for Virtual Machines, Raspberry Pi, Odroid HC1, Rock64 and other boards. A command injection vulnerability in NextCloudPi allows command execution as the root user via the NextCloudPi web-panel. Due to a security misconfiguration this can be used by anyone with access to NextCloudPi web-panel, no authentication is required. It is recommended that the NextCloudPi is upgraded to 1.53.1.

CVSS 3.1 · 10 Critical EPSS 2.1% KEV · Not listed
Vendors
Nextcloud
Products
Nextcloudpi
CVE-2021-43863

SQL Injection in FileContentProvider (GHSL-2021-1007)

The Nextcloud Android app is the Android client for Nextcloud, a self-hosted productivity platform. The Nextcloud Android app uses content providers to manage its data. Prior to version 3.18.1, the providers `FileContentProvider` and `DiskLruImageCacheFileProvider` have security issues (an SQL injection, and an insufficient permission control, respectively) that allow malicious apps in the same device to access Nextcloud's data bypassing the permission control system. Users should upgrade to version 3.18.1 to receive a patch. There are no known workarounds aside from upgrading.

CVSS 3.1 · 7.5 High EPSS 1.9% KEV · Not listed
Vendors
Nextcloud
Products
Nextcloud
CVE-2021-41166

Permission bypass in Nextcloud Android App

The Nextcloud Android app is the Android client for Nextcloud, a self-hosted productivity platform. An issue in versions prior to 3.17.1 may lead to sensitive information disclosure. An unauthorized app that does not have the otherwise required `MANAGE_DOCUMENTS` permission may view image thumbnails for images it does not have permission to view. Version 3.17.1 contains a patch. There are no known workarounds.

CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Vendors
Nextcloud
Products
Nextcloud
CVE-2021-41181

Nextcloud Talk app exposes chat messages on lockscreen

Nextcloud talk is a self hosting messaging service. In versions prior to 12.3.0 the Nextcloud Android Talk application did not properly detect the lockscreen state when a call was incoming. If an attacker got physical access to the locked phone, and the victim received a phone call the attacker could gain access to the chat messages and files of the user. It is recommended that the Nextcloud Android Talk App is upgraded to 12.3.0. There are no known workarounds.

CVSS 3.1 · 2.4 Low EPSS < 1% KEV · Not listed
Vendors
Nextcloud
Products
Talk
CVE-2021-41239

User enumeration setting not respected in Nextcloud server

Nextcloud server is a self hosted system designed to provide cloud style services. In affected versions the User Status API did not consider the user enumeration settings by the administrator. This allowed a user to enumerate other users on the instance, even when user listings where disabled. It is recommended that the Nextcloud Server is upgraded to 20.0.14, 21.0.6 or 22.2.1. There are no known workarounds.

CVSS 3.1 · 5.3 Medium EPSS 1.2% KEV · Not listed
Vendors
Nextcloud
Products
Nextcloud Server
CVE-2021-41241

Advanced permissions is not respected for subfolders in Nextcloud server

Nextcloud server is a self hosted system designed to provide cloud style services. The groupfolders application for Nextcloud allows sharing a folder with a group of people. In addition, it allows setting "advanced permissions" on subfolders, for example, a user could be granted access to the groupfolder but not specific subfolders. Due to a lacking permission check in affected versions, a user could still access these subfolders by copying the groupfolder to another location. It is recommended that the Nextcloud Server is upgraded to 20.0.14, 21.0.6 or 22.2.1. Users unable to upgrade should disable the "groupfolders" application in the admin settings.

CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Vendors
Nextcloud
Products
Nextcloud Server
CVE-2021-41233

Missing authorization in Nextcloud text

Nextcloud text is a collaborative document editing using Markdown built for the nextcloud server. Due to an issue with the Nextcloud Text application, which is by default shipped with Nextcloud Server, an attacker is able to access the folder names of "File Drop". For successful exploitation an attacker requires knowledge of the sharing link. It is recommended that users upgrade their Nextcloud Server to 20.0.14, 21.0.6 or 22.2.1. Users unable to upgrade should disable the Nextcloud Text application in the application settings.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Nextcloud
Products
Nextcloud Server
CVE-2022-24838

Command Injection in Appointment Emails for Nextcloud Calendar

Nextcloud Calendar is a calendar application for the nextcloud framework. SMTP Command Injection in Appointment Emails via Newlines: as newlines and special characters are not sanitized in the email value in the JSON request, a malicious attacker can inject newlines to break out of the `RCPT TO:<BOOKING USER'S EMAIL> ` SMTP command and begin injecting arbitrary SMTP commands. It is recommended that Calendar is upgraded to 3.2.2. There are no workaround available.

CVSS 3.1 · 5.3 Medium EPSS 33.0% KEV · Not listed
Vendors
Nextcloud
Products
Calendar
CVE-2022-24886

Exposure of Sensitive Information to an Unauthorized Actor in com.nextcloud.client

Nextcloud Android app is the Android client for Nextcloud, a self-hosted productivity platform. In versions prior to 3.19.0, any application with notification permission can access contacts if Nextcloud has access to Contacts without applying for the Contacts permission itself. Version 3.19.0 contains a fix for this issue. There are currently no known workarounds.

CVSS 3.1 · 2.2 Low EPSS < 1% KEV · Not listed
Vendors
Nextcloud
Products
Nextcloud
CVE-2022-24888

Possible Injection in Nextcloud Server

Nextcloud Server is the file server software for Nextcloud, a self-hosted productivity platform. Prior to versions 20.0.14.4, 21.0.8, 22.2.4, and 23.0.1, it is possible to create files and folders that have leading and trailing \n, \r, \t, and \v characters. The server rejects files and folders that have these characters in the middle of their names, so this might be an opportunity for injection. This issue is fixed in versions 20.0.14.4, 21.0.8, 22.2.4, and 23.0.1. There are currently no known workarounds.

CVSS 3.1 · 4.3 Medium EPSS 1.3% KEV · Not listed
Vendors
Nextcloud
Products
Nextcloud Server
CVE-2022-29163

Bypass of password requirements when sharing a folder via the Circles app in Nextcloud Server

Nextcloud Server is the file server software for Nextcloud, a self-hosted productivity platform. Prior to versions 22.2.6 and 23.0.3, a user can create a link that is not password protected even if the administrator requires links to be password protected. Versions 22.2.6 and 23.0.3 contain a patch for this issue. There are currently no known workarounds.

CVSS 3.1 · 3.5 Low EPSS 1.1% KEV · Not listed
Vendors
Nextcloud
Products
Nextcloud Server
CVE-2022-29243

Improper input-size validation on the user new session name in Nextcloud Server

Nextcloud Server is the file server software for Nextcloud, a self-hosted productivity platform. Prior to versions 22.2.7 and 23.0.4, missing input-size validation of new session names allows users to create app passwords with long names. These long names are then loaded into memory on usage, resulting in impacted performance. Versions 22.2.7 and 23.0.4 contain a fix for this issue. There are currently no known workarounds available.

CVSS 3.1 · 4.3 Medium EPSS 1.6% KEV · Not listed
Vendors
Nextcloud
Products
Nextcloud Server
CVE-2022-31024

Federated editing allows iframing remote servers by default in richdocuments

richdocuments is the repository for NextCloud Collabra, the app for Nextcloud Office collaboration. Prior to versions 6.0.0, 5.0.4, and 4.2.6, a user could be tricked into working against a remote Office by sending them a federated share. richdocuments versions 6.0.0, 5.0.4 and 4.2.6 contain a fix for this issue. There are currently no known workarounds available.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Nextcloud
Products
Richdocuments