Vulnerabilities (CVE)

Filtered by vendor Nextcloud Subscribe
Filtered by product Nextcloud Server
Total 144 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2021-32656 1 Nextcloud 1 Nextcloud Server 2024-11-21 5.0 MEDIUM 8.6 HIGH
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 as a federated share. This happens because Nextcloud supports sharing registered users with other Nextcloud servers, which can be done automatically when selecting the "Add server automatically once a federated share was created successfully" setting. The vulnerability is patched in versions 19.0.11, 20.0.10, and 21.0.2 As a workaround, disable "Add server automatically once a federated share was created successfully" in the Nextcloud settings.
CVE-2021-32655 1 Nextcloud 1 Nextcloud Server 2024-11-21 3.5 LOW 3.5 LOW
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 convert a Files Drop link to a federated share. This causes an issue on the UI side of the sharing user. When the sharing user opens the sharing panel and tries to remove the "Create" privileges of this unexpected share, Nextcloud server would silently grant the share read privileges. The vulnerability is patched in versions 19.0.11, 20.0.10 and 21.0.2. No workarounds are known to exist.
CVE-2021-32654 1 Nextcloud 1 Nextcloud Server 2024-11-21 6.4 MEDIUM 8.1 HIGH
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-2021-32653 1 Nextcloud 1 Nextcloud Server 2024-11-21 4.0 MEDIUM 2.7 LOW
Nextcloud Server is a Nextcloud package that handles data storage. Nextcloud Server versions prior to 19.0.11, 20.0.10, or 21.0.2 send user IDs to the lookup server even if the user has no fields set to published. The vulnerability is patched in versions 19.0.11, 20.0.10, and 21.0.2; no workarounds outside the updates are known to exist.
CVE-2021-22915 2 Fedoraproject, Nextcloud 2 Fedora, Nextcloud Server 2024-11-21 5.0 MEDIUM 9.8 CRITICAL
Nextcloud server before 19.0.11, 20.0.10, 21.0.2 is vulnerable to brute force attacks due to lack of inclusion of IPv6 subnets in rate-limiting considerations. This could potentially result in an attacker bypassing rate-limit controls such as the Nextcloud brute-force protection.
CVE-2021-22878 2 Fedoraproject, Nextcloud 2 Fedora, Nextcloud Server 2024-11-21 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-2020-8296 2 Fedoraproject, Nextcloud 2 Fedora, Nextcloud Server 2024-11-21 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-2020-8295 1 Nextcloud 1 Nextcloud Server 2024-11-21 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-2020-8294 1 Nextcloud 1 Nextcloud Server 2024-11-21 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.
CVE-2020-8223 2 Fedoraproject, Nextcloud 2 Fedora, Nextcloud Server 2024-11-21 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-2020-8155 1 Nextcloud 1 Nextcloud Server 2024-11-21 3.5 LOW 5.4 MEDIUM
An outdated 3rd party library in the Files PDF viewer for Nextcloud Server 18.0.2 caused a Cross-site scripting vulnerability when opening a malicious PDF.
CVE-2020-8154 1 Nextcloud 1 Nextcloud Server 2024-11-21 6.8 MEDIUM 7.7 HIGH
An Insecure direct object reference vulnerability in Nextcloud Server 18.0.2 allowed an attacker to remote wipe devices of other users when sending a malicious request directly to the endpoint.
CVE-2020-8150 1 Nextcloud 1 Nextcloud Server 2024-11-21 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-2020-8139 2 Fedoraproject, Nextcloud 2 Fedora, Nextcloud Server 2024-11-21 4.0 MEDIUM 6.5 MEDIUM
A missing access control check in Nextcloud Server < 18.0.1, < 17.0.4, and < 16.0.9 causes hide-download shares to be downloadable when appending /download to the URL.
CVE-2020-8138 1 Nextcloud 1 Nextcloud Server 2024-11-21 4.0 MEDIUM 6.5 MEDIUM
A missing check for IPv4 nested inside IPv6 in Nextcloud server < 17.0.1, < 16.0.7, and < 15.0.14 allowed a Server-Side Request Forgery (SSRF) vulnerability when subscribing to a malicious calendar URL.
CVE-2020-8133 1 Nextcloud 1 Nextcloud Server 2024-11-21 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-2020-8122 1 Nextcloud 1 Nextcloud Server 2024-11-21 4.0 MEDIUM 4.3 MEDIUM
A missing check in Nextcloud Server 14.0.3 could give recipient the possibility to extend the expiration date of a share they received.
CVE-2020-8121 1 Nextcloud 1 Nextcloud Server 2024-11-21 5.5 MEDIUM 8.1 HIGH
A bug in Nextcloud Server 14.0.4 could expose more data in reshared link shares than intended by the sharer.
CVE-2020-8120 1 Nextcloud 1 Nextcloud Server 2024-11-21 4.3 MEDIUM 6.1 MEDIUM
A reflected Cross-Site Scripting vulnerability in Nextcloud Server 16.0.1 was discovered in the svg generation.
CVE-2020-8119 1 Nextcloud 1 Nextcloud Server 2024-11-21 4.0 MEDIUM 4.3 MEDIUM
Improper authorization in Nextcloud server 17.0.0 causes leaking of previews and files when a file-drop share link is opened via the gallery app.