Vulnerabilities (CVE)

Filtered by vendor Nextcloud Subscribe
Filtered by product Nextcloud Server
Total 159 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2021-32703 2 Fedoraproject, Nextcloud 2 Fedora, Nextcloud Server 2024-02-28 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-2021-32725 1 Nextcloud 1 Nextcloud Server 2024-02-28 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, default share permissions were not being respected for federated reshares of files and folders. The issue was fixed in versions 19.0.13, 20.0.11, and 21.0.3. There are no known workarounds.
CVE-2021-32679 2 Fedoraproject, Nextcloud 2 Fedora, Nextcloud Server 2024-02-28 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-2021-32680 2 Fedoraproject, Nextcloud 2 Fedora, Nextcloud Server 2024-02-28 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-2021-32705 2 Fedoraproject, Nextcloud 2 Fedora, Nextcloud Server 2024-02-28 5.0 MEDIUM 7.5 HIGH
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 public DAV endpoint. This may have allowed an attacker to enumerate potentially valid share tokens or credentials. The issue was fixed in versions 19.0.13, 20.0.11, and 21.0.3. There are no known workarounds.
CVE-2021-32741 1 Nextcloud 1 Nextcloud Server 2024-02-28 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 public share link mount 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-2021-32657 1 Nextcloud 1 Nextcloud Server 2024-02-28 4.0 MEDIUM 4.3 MEDIUM
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 vulnerability is fixed in versions 19.0.11, 20.0.10, and 21.0.2. As a workaround, administrators can use the OCC command line tool to administrate the Nextcloud users.
CVE-2021-32654 1 Nextcloud 1 Nextcloud Server 2024-02-28 6.4 MEDIUM 9.1 CRITICAL
Nextcloud Server is a Nextcloud package that handles data storage. In versions prior to 19.0.11, 20.0.10, and 21.0.2, an attacker is able to receive write/read privileges on any Federated File Share. Since public links can be added as federated file share, this can also be exploited on any public link. Users can upgrade to patched versions (19.0.11, 20.0.10 or 21.0.2) or, as a workaround, disable federated file sharing.
CVE-2021-32688 2 Fedoraproject, Nextcloud 2 Fedora, Nextcloud Server 2024-02-28 7.5 HIGH 8.8 HIGH
Nextcloud Server is a Nextcloud package that handles data storage. Nextcloud Server supports application specific tokens for authentication purposes. These tokens are supposed to be granted to a specific applications (e.g. DAV sync clients), and can also be configured by the user to not have any filesystem access. Due to a lacking permission check, the tokens were able to change their own permissions in versions prior to 19.0.13, 20.0.11, and 21.0.3. Thus fileystem limited tokens were able to grant themselves access to the filesystem. The issue is patched in versions 19.0.13, 20.0.11, and 21.0.3. There are no known workarounds aside from upgrading.
CVE-2021-32734 1 Nextcloud 1 Nextcloud Server 2024-02-28 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-2021-32678 2 Fedoraproject, Nextcloud 2 Fedora, Nextcloud Server 2024-02-28 5.0 MEDIUM 5.3 MEDIUM
Nextcloud Server is a Nextcloud package that handles data storage. In versions prior to 19.0.13, 20.0.11, and 21.0.3, ratelimits are not applied to OCS API responses. This affects any OCS API controller (`OCSController`) using the `@BruteForceProtection` annotation. Risk depends on the installed applications on the Nextcloud Server, but could range from bypassing authentication ratelimits or spamming other Nextcloud users. The vulnerability is patched in versions 19.0.13, 20.0.11, and 21.0.3. No workarounds aside from upgrading are known to exist.
CVE-2020-8259 1 Nextcloud 1 Nextcloud Server 2024-02-28 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 2024-02-28 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-2020-8223 2 Fedoraproject, Nextcloud 2 Fedora, Nextcloud Server 2024-02-28 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 2024-02-28 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-2020-8133 1 Nextcloud 1 Nextcloud Server 2024-02-28 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-2020-8236 1 Nextcloud 1 Nextcloud Server 2024-02-28 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-2020-8152 1 Nextcloud 1 Nextcloud Server 2024-02-28 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-2020-8295 1 Nextcloud 1 Nextcloud Server 2024-02-28 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-2020-8173 1 Nextcloud 1 Nextcloud Server 2024-02-28 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.