Vulnerabilities (CVE)

Filtered by vendor Nextcloud Subscribe
Filtered by product Nextcloud Server
Total 154 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2021-32801 1 Nextcloud 1 Nextcloud Server 2023-12-10 2.1 LOW 5.5 MEDIUM
Nextcloud server is an open source, self hosted personal cloud. In affected versions logging of exceptions may have resulted in logging potentially sensitive key material for the Nextcloud Encryption-at-Rest functionality. It is recommended that the Nextcloud Server is upgraded to 20.0.12, 21.0.4 or 22.1.0. If upgrading is not an option users are advised to disable system logging to resolve this issue until such time that an upgrade can be performed Note that ff you do not use the Encryption-at-Rest functionality of Nextcloud you are not affected by this bug.
CVE-2021-32679 2 Fedoraproject, Nextcloud 2 Fedora, Nextcloud Server 2023-12-10 6.8 MEDIUM 8.8 HIGH
Nextcloud Server is a Nextcloud package that handles data storage. In versions prior to 19.0.13, 20.0.11, and 21.0.3, filenames where not escaped by default in controllers using `DownloadResponse`. When a user-supplied filename was passed unsanitized into a `DownloadResponse`, this could be used to trick users into downloading malicious files with a benign file extension. This would show in UI behaviours where Nextcloud applications would display a benign file extension (e.g. JPEG), but the file will actually be downloaded with an executable file extension. The vulnerability is patched in versions 19.0.13, 20.0.11, and 21.0.3. Administrators of Nextcloud instances do not have a workaround available, but developers of Nextcloud apps may manually escape the file name before passing it into `DownloadResponse`.
CVE-2021-32734 1 Nextcloud 1 Nextcloud Server 2023-12-10 5.0 MEDIUM 5.3 MEDIUM
Nextcloud Server is a Nextcloud package that handles data storage. In versions prior to 19.0.13, 20.011, and 21.0.3, the Nextcloud Text application shipped with Nextcloud Server returned verbatim exception messages to the user. This could result in a full path disclosure on shared files. The issue was fixed in versions 19.0.13, 20.0.11, and 21.0.3. As a workaround, one may disable the Nextcloud Text application in Nextcloud Server app settings.
CVE-2021-32766 1 Nextcloud 1 Nextcloud Server 2023-12-10 5.0 MEDIUM 5.3 MEDIUM
Nextcloud Text is an open source plaintext editing application which ships with the nextcloud server. In affected versions the Nextcloud Text application returned different error messages depending on whether a folder existed in a public link share. This is problematic in case the public link share has been created with "Upload Only" privileges. (aka "File Drop"). A link share recipient is not expected to see which folders or files exist in a "File Drop" share. Using this vulnerability an attacker is able to enumerate folders in such a share. Exploitation requires that the attacker has access to a valid affected "File Drop" link share. It is recommended that the Nextcloud Server is upgraded to 20.0.12, 21.0.4 or 22.0.1. Users who are unable to upgrade are advised to disable the Nextcloud Text application in the app settings.
CVE-2021-32680 2 Fedoraproject, Nextcloud 2 Fedora, Nextcloud Server 2023-12-10 2.1 LOW 3.3 LOW
Nextcloud Server is a Nextcloud package that handles data storage. In versions priot to 19.0.13, 20.0.11, and 21.0.3, Nextcloud Server audit logging functionality wasn't properly logging events for the unsetting of a share expiration date. This event is supposed to be logged. This issue is patched in versions 19.0.13, 20.0.11, and 21.0.3.
CVE-2021-32703 2 Fedoraproject, Nextcloud 2 Fedora, Nextcloud Server 2023-12-10 5.0 MEDIUM 5.3 MEDIUM
Nextcloud Server is a Nextcloud package that handles data storage. In versions prior to 19.0.13, 20.011, and 21.0.3, there was a lack of ratelimiting on the shareinfo endpoint. This may have allowed an attacker to enumerate potentially valid share tokens. The issue was fixed in versions 19.0.13, 20.0.11, and 21.0.3. There are no known workarounds.
CVE-2020-8173 1 Nextcloud 1 Nextcloud Server 2023-12-10 3.5 LOW 2.2 LOW
A too small set of random characters being used for encryption in Nextcloud Server 18.0.4 allowed decryption in shorter time than intended.
CVE-2020-8295 1 Nextcloud 1 Nextcloud Server 2023-12-10 5.0 MEDIUM 7.5 HIGH
A wrong check in Nextcloud Server 19 and prior allowed to perform a denial of service attack when resetting the password for a user.
CVE-2020-8236 1 Nextcloud 1 Nextcloud Server 2023-12-10 4.6 MEDIUM 6.8 MEDIUM
A wrong configuration in Nextcloud Server 19.0.1 incorrectly made the user feel the passwordless WebAuthn is also a two factor verification by asking for the PIN of the passwordless WebAuthn but not verifying it.
CVE-2020-8183 1 Nextcloud 1 Nextcloud Server 2023-12-10 5.0 MEDIUM 7.5 HIGH
A logic error in Nextcloud Server 19.0.0 caused a plaintext storage of the share password when it was given on the initial create API call.
CVE-2020-8259 1 Nextcloud 1 Nextcloud Server 2023-12-10 5.5 MEDIUM 8.1 HIGH
Insufficient protection of the server-side encryption keys in Nextcloud Server 19.0.1 allowed an attacker to replace the encryption keys.
CVE-2020-8150 1 Nextcloud 1 Nextcloud Server 2023-12-10 1.9 LOW 4.1 MEDIUM
A cryptographic issue in Nextcloud Server 19.0.1 allowed an attacker to downgrade the encryption scheme and break the integrity of encrypted files.
CVE-2020-8296 2 Fedoraproject, Nextcloud 2 Fedora, Nextcloud Server 2023-12-10 4.6 MEDIUM 6.7 MEDIUM
Nextcloud Server prior to 20.0.0 stores passwords in a recoverable format even when external storage is not configured.
CVE-2020-8293 1 Nextcloud 1 Nextcloud Server 2023-12-10 4.0 MEDIUM 6.5 MEDIUM
A missing input validation in Nextcloud Server before 20.0.2, 19.0.5, 18.0.11 allows users to store unlimited data in workflow rules causing load and potential DDoS on later interactions and usage with those rules.
CVE-2020-8223 2 Fedoraproject, Nextcloud 2 Fedora, Nextcloud Server 2023-12-10 3.5 LOW 6.5 MEDIUM
A logic error in Nextcloud Server 19.0.0 caused a privilege escalation allowing malicious users to reshare with higher permissions than they got assigned themselves.
CVE-2021-22878 2 Fedoraproject, Nextcloud 2 Fedora, Nextcloud Server 2023-12-10 3.5 LOW 4.8 MEDIUM
Nextcloud Server prior to 20.0.6 is vulnerable to reflected cross-site scripting (XSS) due to lack of sanitization in `OC.Notification.show`.
CVE-2021-22877 2 Fedoraproject, Nextcloud 2 Fedora, Nextcloud Server 2023-12-10 5.5 MEDIUM 6.5 MEDIUM
A missing user check in Nextcloud prior to 20.0.6 inadvertently populates a user's own credentials for other users external storage configuration when not already configured yet.
CVE-2020-8133 1 Nextcloud 1 Nextcloud Server 2023-12-10 5.0 MEDIUM 5.3 MEDIUM
A wrong generation of the passphrase for the encrypted block in Nextcloud Server 19.0.1 allowed an attacker to overwrite blocks in a file.
CVE-2020-8152 1 Nextcloud 1 Nextcloud Server 2023-12-10 2.1 LOW 4.4 MEDIUM
Insufficient protection of the server-side encryption keys in Nextcloud Server 19.0.1 allowed an attacker to replace the public key to decrypt them later on.
CVE-2020-8294 1 Nextcloud 1 Nextcloud Server 2023-12-10 3.5 LOW 5.4 MEDIUM
A missing link validation in Nextcloud Server before 20.0.2, 19.0.5, 18.0.11 allows execution of a stored XSS attack using Internet Explorer when saving a 'javascript:' URL in markdown format.