CVE-2023-39960: Nextcloud Server has improper restriction of excessive authentication attempts on WebDAV endpoint
First published: Fri Oct 13 2023(Updated: )
Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. In Nextcloud Server starting with 25.0.0 and prior to 25.09 and 26.04; as well as Nextcloud Enterprise Server starting with 22.0.0 and prior to 22.2.10.14, 23.0.12.9, 24.0.12.5, 25.0.9, and 26.0.4; missing protection allows an attacker to brute force passwords on the WebDAV API. Nextcloud Server 25.0.9 and 26.0.4 and Nextcloud Enterprise Server 22.2.10.14, 23.0.12.9, 24.0.12.5, 25.0.9, and 26.0.4 contain patches for this issue. No known workarounds are available.
Credit: security-advisories@github.com security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Nextcloud Nextcloud Server | >=22.0.0<22.2.10.14 | |
| Nextcloud Nextcloud Server | >=23.0.0<23.0.12.9 | |
| Nextcloud Nextcloud Server | >=24.0.0<24.0.12.5 | |
| Nextcloud Nextcloud Server | >=25.0.0<25.0.9 | |
| Nextcloud Nextcloud Server | >=25.0.0<25.0.9 | |
| Nextcloud Nextcloud Server | >=26.0.0<26.0.4 | |
| Nextcloud Nextcloud Server | >=26.0.0<26.0.4 |
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Reference Links
Frequently Asked Questions
What is CVE-2023-39960?
CVE-2023-39960 is a vulnerability in Nextcloud Server and Nextcloud Enterprise Server that allows unauthorized access to protected files.
What is the severity of CVE-2023-39960?
The severity of CVE-2023-39960 is high, with a severity score of 7.5.
Which versions of Nextcloud Server are affected by CVE-2023-39960?
Nextcloud Server versions 25.0.0 to 25.0.9 and 26.0.0 to 26.0.4 are affected by CVE-2023-39960.
Which versions of Nextcloud Enterprise Server are affected by CVE-2023-39960?
Nextcloud Enterprise Server versions 22.0.0 to 22.2.10.14, 23.0.0 to 23.0.12.9, 24.0.0 to 24.0.12.5, 25.0.0 to 25.0.9, and 26.0.0 to 26.0.4 are affected by CVE-2023-39960.
How can I fix CVE-2023-39960?
To fix CVE-2023-39960, it is recommended to update Nextcloud Server or Nextcloud Enterprise Server to the latest version available.
- collector/nvd-api
- collector/nvd-index
- agent/type
- agent/author
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/weakness
- agent/remedy
- agent/last-modified-date
- agent/title
- agent/severity
- agent/references
- agent/description
- agent/tags
- agent/first-publish-date
- agent/event
- vendor/nextcloud
- canonical/nextcloud nextcloud server
- version/nextcloud nextcloud server/22.0.0
- version/nextcloud nextcloud server/23.0.0
- version/nextcloud nextcloud server/24.0.0
- version/nextcloud nextcloud server/25.0.0
- version/nextcloud nextcloud server/26.0.0