Vulnerability Monitor

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CVE-2023-28834

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.

Security Impact Summary

This vulnerability carries a LOW severity rating with a CVSS v3.1 score of 3.5, indicating it can be exploited remotely over the network with relatively low complexity though user interaction is required requiring only low-level privileges . The vulnerability impacts limited data confidentiality, for affected systems. Impacting 1 product from nextcloud organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2023, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.

Published

2023-04-03T17:15:06.883

Last Modified

2024-11-21T07:56:07.197

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 3.5 (LOW)

Weaknesses

Type: Secondary
CWE-212

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	nextcloud	nextcloud_server	< 23.0.14	Yes
Application	nextcloud	nextcloud_server	< 24.0.10	Yes
Application	nextcloud	nextcloud_server	< 24.0.10	Yes
Application	nextcloud	nextcloud_server	< 25.0.4	Yes
Application	nextcloud	nextcloud_server	< 25.0.4	Yes

References

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-5w64-6c42-rgcv Vendor Advisory ([email protected])
https://github.com/nextcloud/server/issues/33883 Exploit, Issue Tracking, Third Party Advisory ([email protected])
https://github.com/nextcloud/server/pull/36094 Patch ([email protected])
https://hackerone.com/reports/1690510 Exploit, Issue Tracking, Patch, Third Party Advisory ([email protected])
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-5w64-6c42-rgcv Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/nextcloud/server/issues/33883 Exploit, Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/nextcloud/server/pull/36094 Patch (af854a3a-2127-422b-91ae-364da2661108)
https://hackerone.com/reports/1690510 Exploit, Issue Tracking, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For nextcloud's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.