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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 Nextcloud Server is upgraded to 28.0.11, 29.0.8 or 30.0.1 and Nextcloud Enterprise Server is upgraded to 25.0.13.13, 26.0.13.9, 27.1.11.9, 28.0.11, 29.0.8 or 30.0.1.

CVSS 3.1 · 4.6 Medium EPSS < 1% KEV · Not listed
Vendors
Nextcloud
Products
Nextcloud Server
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 or 23.0.11 or 24.0.6 and Nextcloud Enterprise Server is upgraded to 22.2.11 or 23.0.11 or 24.0.6.

CVSS 3.1 · 3 Low EPSS < 1% KEV · Not listed
Vendors
Nextcloud
Products
Nextcloud Server
CVE-2023-32320

Nextcloud Server's brute force protection allows someone to send more requests than intended

Nextcloud Server is a data storage system for Nextcloud, a self-hosted productivity platform. When multiple requests are sent in parallel, all of them were executed even if the amount of faulty requests succeeded the limit by the time the response was sent to the client. This allowed someone to send as many requests the server could handle in parallel to bruteforce protected details instead of the configured limit, default 8. Nextcloud Server versions 25.0.7 and 26.0.2 and Nextcloud Enterprise Server versions 21.0.9.12, 22.2.10.12, 23.0.12.7, 24.0.12.2, 25.0.7 and 26.0.2 contain patches for this issue.

CVSS 3.1 · 8.7 High EPSS < 1% KEV · Not listed
Vendors
Nextcloud
Products
Nextcloud Server
CVE-2023-35928

Nextcloud user scoped external storage can be used to gather credentials of other users

Nextcloud Server is a space for data storage on Nextcloud, a self-hosted productivity playform. In NextCloud Server versions 25.0.0 until 25.0.7 and 26.0.0 until 26.0.2 and Nextcloud Enterprise Server versions 19.0.0 until 19.0.13.9, 20.0.0 until 20.0.14.14, 21.0.0 until 21.0.9.12, 22.0.0 until 22.2.10.12, 23.0.0 until 23.0.12.7, 24.0.0 until 24.0.12.2, 25.0.0 until 25.0.7, and 26.0.0 until 26.0.2, a user could use this functionality to get access to the login credentials of another user and take over their account. This issue has been patched in Nextcloud Server versions 25.0.7 and 26.0.2 and NextCloud Enterprise Server versions 19.0.13.9, 20.0.14.14, 21.0.9.12, 22.2.10.12, 23.0.12.7, 24.0.12.2, 25.0.7, and 26.0.2. Three workarounds are available. Disable app files_external. Change config setting "Allow users to mount external storage" to disabled in "Administration" > "External storage" settings `…/index.php/settings/admin/externalstorages`. Change config setting to disallow users to create external storages in "Administration" > "External storage" settings `…/index.php/settings/admin/externalstorages` with the types FTP, Nextcloud, SFTP, and/or WebDAV.

CVSS 3.1 · 8.5 High EPSS < 1% KEV · Not listed
Vendors
Nextcloud
Products
Nextcloud Server
CVE-2023-35172

Nextcloud Server password reset endpoint is not brute force protected

NextCloud Server and NextCloud Enterprise Server provide file storage for Nextcloud, a self-hosted productivity platform. In NextCloud Server versions 25.0.0 until 25.0.7 and 26.0.0 until 26.0.2 and Nextcloud Enterprise Server versions 21.0.0 until 21.0.9.12, 22.0.0 until 22.2.10.12, 23.0.0 until 23.0.12.7, 24.0.0 until 24.0.12.2, 25.0.0 until 25.0.7, and 26.0.0 until 26.0.2, an attacker can bruteforce the password reset links. Nextcloud Server n 25.0.7 and 26.0.2 and Nextcloud Enterprise Server 21.0.9.12, 22.2.10.12, 23.0.12.7, 24.0.12.2, 25.0.7, and 26.0.2 contain a patch for this issue. No known workarounds are available.

CVSS 3.1 · 8.7 High EPSS < 1% KEV · Not listed
Vendors
Nextcloud
Products
Nextcloud Server
CVE-2023-48305

Nextcloud Server user_ldap app logs user passwords in the log file on level debug

Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 25.0.0 and prior to versions 25.0.11, 26.0.6, and 27.1.0 of Nextcloud Server and Nextcloud Enterprise Server, when the log level was set to debug, the user_ldap app logged user passwords in plaintext into the log file. If the log file was then leaked or shared in any way the users' passwords would be leaked. Nextcloud Server and Nextcloud Enterprise Server versions 25.0.11, 26.0.6, and 27.1.0 contain a patch for this issue. As a workaround, change config setting `loglevel` to `1` or higher (should always be higher than 1 in production environments).

CVSS 3.1 · 4.2 Medium EPSS < 1% KEV · Not listed
Vendors
Nextcloud
Products
Nextcloud Server
CVE-2023-48308

Calendar app returns full stacktrace when an error happens while editing appointment

Nextcloud/Cloud is a calendar app for Nextcloud. An attacker can gain access to stacktrace and internal paths of the server when generating an exception while editing a calendar appointment. It is recommended that the Nextcloud Calendar app is upgraded to 4.5.3

CVSS 3.1 · 3.5 Low EPSS < 1% KEV · Not listed
Vendors
Nextcloud
Products
Calendar
CVE-2024-37885

Code injection in Nextcloud Desktop Client for macOS

The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server with your computer. A code injection in Nextcloud Desktop Client for macOS allowed to load arbitrary code when starting the client with DYLD_INSERT_LIBRARIES set in the enviroment. It is recommended that the Nextcloud Desktop client is upgraded to 3.12.0.

CVSS 3.1 · 3.8 Low EPSS < 1% KEV · Not listed
Vendors
Apple Nextcloud
Products
Macos Desktop
CVE-2024-37884

Nextcloud Server's users can delete old versions of read-only shared files

Nextcloud Server is a self hosted personal cloud system. A malicious user was able to send delete requests for old versions of files they only got shared with read permissions. It is recommended that the Nextcloud Server is upgraded to 26.0.12 or 27.1.7 or 28.0.3 and that the Nextcloud Enterprise Server is upgraded to 26.0.12 or 27.1.7 or 28.0.3.

CVSS 3.1 · 3.5 Low EPSS < 1% KEV · Not listed
Vendors
Nextcloud
Products
Nextcloud Server
CVE-2024-37883

Nextcloud Deck can access comments and attachments of deleted cards

Nextcloud Deck is a kanban style organization tool aimed at personal planning and project organization for teams integrated with Nextcloud. A user with access to a deck board was able to access comments and attachments of already deleted cards. It is recommended that the Nextcloud Deck app is upgraded to 1.6.6 or 1.7.5 or 1.8.7 or 1.9.6 or 1.11.3 or 1.12.1.

CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Vendors
Nextcloud
Products
Deck
CVE-2024-37882

Nextcloud Server can reshare read&share only folder with more permissions

Nextcloud Server is a self hosted personal cloud system. A recipient of a share with read&share permissions could reshare the item with more permissions. It is recommended that the Nextcloud Server is upgraded to 26.0.13 or 27.1.8 or 28.0.4 and that the Nextcloud Enterprise Server is upgraded to 26.0.13 or 27.1.8 or 28.0.4.

CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed
Vendors
Nextcloud
Products
Nextcloud Server
CVE-2024-37317

Nextcloud Notes app can be tricked into using a received share created before the user logged in

The Nextcloud Notes app is a distraction free notes taking app for Nextcloud. If an attacker managed to share a folder called `Notes/` with a newly created user before they logged in, the Notes app would use that folder store the personal notes. It is recommended that the Nextcloud Notes app is upgraded to 4.9.3.

CVSS 3.1 · 4.6 Medium EPSS < 1% KEV · Not listed
Vendors
Nextcloud
Products
Notes
CVE-2024-37316

Nextcloud Calendar's event create can create attachments that link to other websites

Nextcloud Calendar is a calendar app for Nextcloud. Authenticated users could create an event with manipulated attachment data leading to a bad redirect for participants when clicked. It is recommended that the Nextcloud Calendar App is upgraded to 4.6.8 or 4.7.2.

CVSS 3.1 · 4.6 Medium EPSS < 1% KEV · Not listed
Vendors
Nextcloud
Products
Calendar
CVE-2024-37315

Nextcloud Server's read-only users can restore old versions

Nextcloud Server is a self hosted personal cloud system. An attacker with read-only access to a file is able to restore older versions of a document when the files_versions app is enabled. It is recommended that the Nextcloud Server is upgraded to 26.0.12, 27.1.7 or 28.0.3 and that the Nextcloud Enterprise Server is upgraded to 23.0.12.16, 24.0.12.12, 25.0.13.6, 26.0.12, 27.1.7 or 28.0.3.

CVSS 3.1 · 3.5 Low EPSS < 1% KEV · Not listed
Vendors
Nextcloud
Products
Nextcloud Server
CVE-2024-37314

Nextcloud Photos' shared albums have no restriction on photo removal

Nextcloud Photos is a photo management app. Users can remove photos from the album of registered users. It is recommended that the Nextcloud Server is upgraded to 25.0.7 or 26.0.2 and the Nextcloud Enterprise Server is upgraded to 25.0.7 or 26.0.2.

CVSS 3.1 · 3.5 Low EPSS < 1% KEV · Not listed
Vendors
Nextcloud
Products
Nextcloud Server
CVE-2024-22401

All users can reset the allowed apps list for Nextcloud Guest App users

Nextcloud guests app is a utility to create guest users which can only see files shared with them. In affected versions users could change the allowed list of apps, allowing them to use apps that were not intended to be used. 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 · 4.1 Medium EPSS < 1% KEV · Not listed
Vendors
Nextcloud
Products
Guests
CVE-2024-22213

Cross-site Scripting when sending HTML as a comment in the Nextcloud Deck app

Deck is a kanban style organization tool aimed at personal planning and project organization for teams integrated with Nextcloud. In affected versions users could be tricked into executing malicious code that would execute in their browser via HTML sent as a comment. It is recommended that the Nextcloud Deck is upgraded to version 1.9.5 or 1.11.2. There are no known workarounds for this vulnerability.

CVSS 3.1 · 0 Low EPSS < 1% KEV · Not listed
Vendors
Nextcloud
Products
Deck
CVE-2024-22212

Nextcloud global site selector authentication bypass

Nextcloud Global Site Selector is a tool which allows you to run multiple small Nextcloud instances and redirect users to the right server. A problem in the password verification method allows an attacker to authenticate as another user. It is recommended that the Nextcloud Global Site Selector is upgraded to version 1.4.1, 2.1.2, 2.3.4 or 2.4.5. There are no known workarounds for this issue.

CVSS 3.1 · 9.7 Critical EPSS < 1% KEV · Not listed
Vendors
Nextcloud
Products
Global Site Selector
CVE-2023-49792

Bruteforce protection can be bypassed with misconfigured proxy

Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. In Nextcloud Server prior to versions 26.0.9 and 27.1.4; as well as Nextcloud Enterprise Server prior to versions 23.0.12.13, 24.0.12.9, 25.0.13.4, 26.0.9, and 27.1.4; when a (reverse) proxy is configured as trusted proxy the server could be tricked into reading a wrong remote address for an attacker, allowing them executing authentication attempts than intended. Nextcloud Server versions 26.0.9 and 27.1.4 and Nextcloud Enterprise Server versions 23.0.12.13, 24.0.12.9, 25.0.13.4, 26.0.9, and 27.1.4 contain a patch for this issue. No known workarounds are available.

CVSS 3.1 · 5.3 Medium EPSS 1.0% KEV · Not listed
Vendors
Nextcloud
Products
Nextcloud Server
CVE-2023-49791

Workflows do not require password confirmation on API level

Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. In Nextcloud Server prior to versions 26.0.9 and 27.1.4; as well as Nextcloud Enterprise Server prior to versions 23.0.12.13, 24.0.12.9, 25.0.13.4, 26.0.9, and 27.1.4; when an attacker manages to get access to an active session of another user via another way, they could delete and modify workflows by sending calls directly to the API bypassing the password confirmation shown in the UI. Nextcloud Server versions 26.0.9 and 27.1.4 and Nextcloud Enterprise Server versions 23.0.12.13, 24.0.12.9, 25.0.13.4, 26.0.9, and 27.1.4 contain a patch for this issue. No known workarounds are available.

CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed
Vendors
Nextcloud
Products
Nextcloud Server