CVE-2023-28834

Public Exploit
Full path of data directory exposed to Nextcloud server users

Description

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 in the future if the information is known. Nextcloud Server 24.0.6 and 25.0.4 and Nextcloud Enterprise Server 23.0.11, 24.0.6, and 25.0.4 contain patches for this issue. There are no known workarounds.

Category

3.5
CVSS
Severity: Low
CVSS 3.1 •
EPSS 0.78% Top 30%
Vendor Advisory github.com
Affected: nextcloud security-advisories
Published at:
Updated at:

References

Link Tags
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-5w64-6c42-rgcv vendor advisory
https://github.com/nextcloud/server/issues/33883 third party advisory issue tracking exploit
https://github.com/nextcloud/server/pull/36094 patch
https://hackerone.com/reports/1690510 patch exploit third party advisory issue tracking

Frequently Asked Questions

What is the severity of CVE-2023-28834?
CVE-2023-28834 has been scored as a low severity vulnerability.
How to fix CVE-2023-28834?
To fix CVE-2023-28834, 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-2023-28834 being actively exploited in the wild?
It is possible that CVE-2023-28834 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-28834?
CVE-2023-28834 affects nextcloud security-advisories.
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