CVSS: 4.3EPSS: 0%CPEs: 5EXPL: 2CVE-2023-28834 – Full path of data directory exposed to Nextcloud server users
https://notcve.org/view.php?id=CVE-2023-28834
03 Apr 2023 — Nextcloud Server is an open source personal cloud server. Nextcloud Server 24.0.0 until 24.0.6 and 25.0.0 until 25.0.4, as well as Nextcloud Enterprise Server 23.0.0 until 23.0.11, 24.0.0 until 24.0.6, and 25.0.0 until 25.0.4, have an information disclosure vulnerability. A user was able to get the full data directory path of the Nextcloud server from an API endpoint. By itself this information is not problematic as it can also be guessed for most common setups, but it could speed up other unknown attacks i... • https://github.com/nextcloud/security-advisories/security/advisories/GHSA-5w64-6c42-rgcv • CWE-212: Improper Removal of Sensitive Information Before Storage or Transfer •
CVSS: 7.8EPSS: 0%CPEs: 5EXPL: 0CVE-2023-28835 – Insecure randomness for default password in nextcloud
https://notcve.org/view.php?id=CVE-2023-28835
30 Mar 2023 — Nextcloud server is an open source home cloud implementation. In affected versions the generated fallback password when creating a share was using a weak complexity random number generator, so when the sharer did not change it the password could be guessable to an attacker willing to brute force it. It is recommended that the Nextcloud Server is upgraded to 24.0.10 or 25.0.4. This issue only affects users who do not have a password policy enabled, so enabling a password policy is an effective mitigation for... • https://github.com/nextcloud/security-advisories/security/advisories/GHSA-7w2p-rp9m-9xp9 • CWE-338: Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) •
CVSS: 10.0EPSS: 0%CPEs: 5EXPL: 0CVE-2023-28833 – Unrestricted filenames for logo or favicon as admin in the theming settings in nextcloud server
https://notcve.org/view.php?id=CVE-2023-28833
30 Mar 2023 — Nextcloud server is an open source home cloud implementation. In affected versions admins of a server were able to upload a logo or a favicon and to provided a file name which was not restricted and could overwrite files in the appdata directory. Administrators may have access to overwrite these files by other means but this method could be exploited by tricking an admin into uploading a maliciously named file. It is recommended that the Nextcloud Server is upgraded to 24.0.10 or 25.0.4. Users unable to upg... • https://github.com/nextcloud/security-advisories/security/advisories/GHSA-ch7f-px7m-hg25 • CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') CWE-434: Unrestricted Upload of File with Dangerous Type •
CVSS: 9.0EPSS: 0%CPEs: 4EXPL: 1CVE-2023-28643 – Potential share collision for recipients when caching is enabled in nextcloud server
https://notcve.org/view.php?id=CVE-2023-28643
30 Mar 2023 — Nextcloud server is an open source home cloud implementation. In affected versions when a recipient receives 2 shares with the same name, while a memory cache is configured, the second share will replace the first one instead of being renamed to `{name} (2)`. It is recommended that the Nextcloud Server is upgraded to 25.0.3 or 24.0.9. Users unable to upgrade should avoid sharing 2 folders with the same name to the same user. • https://github.com/nextcloud/security-advisories/security/advisories/GHSA-hhq4-4pr8-wm27 • CWE-706: Use of Incorrectly-Resolved Name or Reference •
CVSS: 9.0EPSS: 0%CPEs: 8EXPL: 0CVE-2023-26482 – Scope of workflow operations is not validated in nextcloud server
https://notcve.org/view.php?id=CVE-2023-26482
30 Mar 2023 — Nextcloud server is an open source home cloud implementation. In affected versions a missing scope validation allowed users to create workflows which are designed to be only available for administrators. Some workflows are designed to be RCE by invoking defined scripts, in order to generate PDFs, invoking webhooks or running scripts on the server. Due to this combination depending on the available apps the issue can result in a RCE at the end. It is recommended that the Nextcloud Server is upgraded to 24.0.... • https://github.com/nextcloud/security-advisories/security/advisories/GHSA-h3c9-cmh8-7qpj • CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') •
CVSS: 8.5EPSS: 0%CPEs: 1EXPL: 0CVE-2023-25817 – Delete permissions are not saved when creating public share in Nextcloud server
https://notcve.org/view.php?id=CVE-2023-25817
27 Mar 2023 — Nextcloud server is an open source, personal cloud implementation. In versions from 24.0.0 and before 24.0.9 a user could escalate their permissions to delete files they were not supposed to deletable but only viewed or downloaded. This issue has been addressed andit is recommended that the Nextcloud Server is upgraded to 24.0.9. There are no known workarounds for this vulnerability. • https://github.com/nextcloud/security-advisories/security/advisories/GHSA-8v5c-f752-fgpv • CWE-281: Improper Preservation of Permissions CWE-732: Incorrect Permission Assignment for Critical Resource •
CVSS: 7.5EPSS: 0%CPEs: 7EXPL: 0CVE-2023-25818 – Missing brute force protection on password reset token in Nextcloud Server
https://notcve.org/view.php?id=CVE-2023-25818
27 Mar 2023 — Nextcloud server is an open source, personal cloud implementation. In affected versions a malicious user could try to reset the password of another user and then brute force the 62^21 combinations for the password reset token. As of commit `704eb3aa` password reset attempts are now throttled. Note that 62^21 combinations would significant compute resources to brute force. None the less it is recommended that the Nextcloud Server is upgraded to 24.0.10 or 25.0.4. • https://github.com/nextcloud/security-advisories/security/advisories/GHSA-v243-x6jc-42mp • CWE-307: Improper Restriction of Excessive Authentication Attempts •
CVSS: 7.8EPSS: 0%CPEs: 7EXPL: 0CVE-2023-25820 – Nextcloud Server and Enterprise Server missing brute force protection on password confirmation modal
https://notcve.org/view.php?id=CVE-2023-25820
22 Mar 2023 — Nextcloud Server is the file server software for Nextcloud, a self-hosted productivity platform, and Nextcloud Enterprise Server is the enterprise version of the file server software. In Nextcloud Server versions 25.0.x prior to 25.0.5 and versions 24.0.x prior to 24.0.10 as well as Nextcloud Enterprise Server versions 25.0.x prior to 25.0.4, 24.0.x prior to 24.0.10, 23.0.x prior to 23.0.12.5, 22.x prior to 22.2.0.10, and 21.x prior to 21.0.9.10, when an attacker gets access to an already logged in user ses... • https://github.com/nextcloud/security-advisories/security/advisories/GHSA-36g6-wjx2-333x • CWE-307: Improper Restriction of Excessive Authentication Attempts •
CVSS: 7.8EPSS: 0%CPEs: 9EXPL: 0CVE-2023-25579 – Directory traversal in Nextcloud server
https://notcve.org/view.php?id=CVE-2023-25579
22 Feb 2023 — Nextcloud server is a self hosted home cloud product. In affected versions the `OC\Files\Node\Folder::getFullPath()` function was validating and normalizing the string in the wrong order. The function is used in the `newFile()` and `newFolder()` items, which may allow to creation of paths outside of ones own space and overwriting data from other users with crafted paths. This issue has been addressed in versions 25.0.2, 24.0.8, and 23.0.12. Users are advised to upgrade. • https://github.com/nextcloud/security-advisories/security/advisories/GHSA-273v-9h7x-p68v • CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') •
CVSS: 5.3EPSS: 0%CPEs: 2EXPL: 1CVE-2023-25162 – Nextcloud Server vulnerable to SSRF via filter bypass due to lax checking on IPs
https://notcve.org/view.php?id=CVE-2023-25162
13 Feb 2023 — Nextcloud Server is the file server software for Nextcloud, a self-hosted productivity platform. Nextcloud Server prior to 24.0.8 and 23.0.12 and Nextcloud Enterprise server prior to 24.0.8 and 23.0.12 are vulnerable to server-side request forgery (SSRF). Attackers can leverage enclosed alphanumeric payloads to bypass IP filters and gain SSRF, which would allow an attacker to read crucial metadata if the server is hosted on the AWS platform. Nextcloud Server 24.0.8 and 23.0.2 and Nextcloud Enterprise Server... • https://github.com/nextcloud/security-advisories/security/advisories/GHSA-mqrx-grp7-244m • CWE-918: Server-Side Request Forgery (SSRF) •