CVE-2023-48303

LOW 2.7CVE-2023-48303 · Published 21/11/2023 · updated 17/06/2026

In short

CVE-2023-48303 is a LOW (CVSS 2.7) vulnerability affecting nextcloud server (nextcloud).
Chance of exploitation in the next 30 days (EPSS): 0.67%, higher than 52.0% of all vulnerabilities.
Fix: update to 25.0.11, 26.0.6, 27.1.0 or later.

Package	Affected versions	Patched versions
nextcloud server nextcloud	`≥ 25.0.0, < 25.0.11≥ 26.0.0, < 26.0.6≥ 27.0.0, < 27.1.0`	`25.0.1126.0.627.1.0`

Description

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.

References

nextcloud/security-advisories security advisory · Vendor Advisory
nextcloud/server#39895 · Issue Tracking
hackerone.com/reports/2107934 · Permissions Required

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Package

Affected versions

Patched versions

nextcloud server

nextcloud

≥ 25.0.0, < 25.0.11≥ 26.0.0, < 26.0.6≥ 27.0.0, < 27.1.0

25.0.1126.0.627.1.0

Description

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