Vulnerability Monitor

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CVE-2023-48303

Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 25.0.0 and prior to versions 25.0.11, 26.0.6, and 27.1.0 of Nextcloud Server and Nextcloud Enterprise Server, admins can change authentication details of user configured external storage. Nextcloud Server and Nextcloud Enterprise Server versions 25.0.11, 26.0.6, and 27.1.0 contain a patch for this issue. No known workarounds are available.

Security Impact Summary

This vulnerability carries a LOW severity rating with a CVSS v3.1 score of 2.4, indicating it can be exploited remotely over the network with relatively low complexity though user interaction is required . The vulnerability impacts and limited availability 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

2023-11-21T22:15:07.893

Last Modified

2024-11-21T08:31:26.823

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 2.4 (LOW)

Weaknesses

Type: Secondary
CWE-284
Type: Primary
NVD-CWE-Other

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	nextcloud	nextcloud_server	< 25.0.11	Yes
Application	nextcloud	nextcloud_server	< 25.0.11	Yes
Application	nextcloud	nextcloud_server	< 26.0.6	Yes
Application	nextcloud	nextcloud_server	< 26.0.6	Yes
Application	nextcloud	nextcloud_server	< 27.1.0	Yes
Application	nextcloud	nextcloud_server	< 27.1.0	Yes

References

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-2448-44rp-c7hh Vendor Advisory ([email protected])
https://github.com/nextcloud/server/pull/39895 Issue Tracking, Patch ([email protected])
https://hackerone.com/reports/2107934 Permissions Required ([email protected])
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-2448-44rp-c7hh Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/nextcloud/server/pull/39895 Issue Tracking, Patch (af854a3a-2127-422b-91ae-364da2661108)
https://hackerone.com/reports/2107934 Permissions Required (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.