Home/CVE/Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 25.0.0 and prio
CVE

CVE-2023-48306

Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 25.0.0 and prio

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 starting in version 22.0.0 and prior to versions 22.2.10.16, 23.0.12.11, 24.0.12.7, 25.0.11, 26.0.6, and 27.1.0 of Nextcloud Enterprise Server, the DNS pin middleware was vulnerable to DNS rebinding allowing an attacker to perform SSRF as a final result. Nextcloud Server 25.0.11, 26.0.6, and 27.1.0 and Nextcloud Enterprise Server 22.2.10.16, 23.0.12.11, 24.0.12.7, 25.0.11, 26.0.6, and 27.1.0 contain patches for this issue.

No known workarounds are available.

MEDIUM · CVSS 5 EPSS 0.005
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-918Server-Side Request Forgery (SSRF)
CWE-918Server-Side Request Forgery (SSRF)
▤

Affected Products & Versions

6
nextcloud server>= 22.0.0 and < 22.2.10.16
nextcloud server>= 23.0.0 and < 23.0.12.11
nextcloud server>= 24.0.0 and < 24.0.12.7
nextcloud server>= 25.0.0 and < 25.0.11
nextcloud server>= 26.0.0 and < 26.0.6
nextcloud server>= 27.0.0 and < 27.1.0
⚠

Public Exploits & PoCs

1
pocgithub.com · 40234github.com
▣

Scoring & Timeline

5
MEDIUM · CVSS v3.1 · security-advisories@github.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD21 Nov 2023 · 11:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-8f69-f9jg-4x3vVendor Advisory
https://hackerone.com/reports/2115212Permissions Required
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