CVE-2023-39960

Nextcloud Server has improper restriction of excessive authentication attempts on WebDAV endpoint

Description

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.

Category

5.0
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.24%
Vendor Advisory github.com
Affected: nextcloud security-advisories
Published at:
Updated at:

References

Link Tags
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-2hrc-5fgp-c9c9 vendor advisory
https://github.com/nextcloud/server/pull/38046 patch issue tracking
https://hackerone.com/reports/1924212 third party advisory

Frequently Asked Questions

What is the severity of CVE-2023-39960?
CVE-2023-39960 has been scored as a medium severity vulnerability.
How to fix CVE-2023-39960?
To fix CVE-2023-39960, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-39960 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-39960 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-39960?
CVE-2023-39960 affects nextcloud security-advisories.
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