What is CVE-2023-48303?

CVE-2023-48303 is a low-severity vulnerability in Nextcloud Server, classified under Improper Access Control. CVSS score: 2.4/10. Published 2023-11-21.

How severe is CVE-2023-48303?

Low severity. CVSS v3 base score is 2.4 out of 10.

Vulnerability in Nextcloud Server

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.

EPSS: 0.007 (48.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 2.4 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:L.

Affected products

Nextcloud Nextcloud_server
Nextcloud Security-advisories — versions >= 25.0.0, < 25.0.11, >= 26.0.0, < 26.0.6, >= 27.0.0, < 27.1.0

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
security-advisories@github.com (Patch, x_refsource_MISC, Issue Tracking)
security-advisories@github.com (Permissions Required, x_refsource_MISC)

Frequently asked questions

What is CVE-2023-48303?: CVE-2023-48303 is a low-severity vulnerability in Nextcloud Server, classified under Improper Access Control. CVSS score: 2.4/10. Published 2023-11-21.
How severe is CVE-2023-48303?: Low severity. CVSS v3 base score is 2.4 out of 10.