Low severity · published Nov 21, 2023
CVE-2023-48303
Nextcloud Server provides data storage for Nextcloud, an open source cloud platform
2.7
CVSS
0.7%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 52% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NS
Nextcloud Server · Nextcloud
25.0.0 before 25.0.11; 25.0.0 before 25.0.11; 26.0.0 before 26.0.6; 26.0.0 before 26.0.6; 27.0.0 before 27.1.0; 27.0.0 before 27.1.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-48303
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-48303
Vendor Advisory
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-2448-44rp-c7hh
Issue Tracking
https://github.com/nextcloud/server/pull/39895
Permissions Required
https://hackerone.com/reports/2107934
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