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01 Record

CVE-2023-48306

Nextcloud Server DNS pin middleware can be tricked into DNS rebinding allowing SSRF

MediumPUBLISHEDCNA: GitHub_M
CNA base score5.0 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

02 Description

Nextcloud Server DNS pin middleware can be tricked into DNS rebinding allowing SSRF

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
0.79% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 56.0% of scored records. A rank, not a probability.
NVD base score
9.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2023-11-21 22:20Z2 YR AGO
Last updated
2024-08-02 21:23Z2 YR AGO
Reserved
2023-11-14
Assigning CNA
GitHub_M
Record state
PUBLISHED
Severity
Medium (CVSS 5.0)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
Weaknesses
  • CWE-918Server-Side Request Forgery (SSRF)Base
Data version
5.1
Document digest
2db0d748bc1f237844064a884cb89701ada7fd602783e1dbd642d8e35ddc797e

05 Affected products

VendorProductVersionsPlatforms
nextcloudsecurity-advisories>= 22.0.0, < 22.2.10.16, >= 23.0.0, < 23.0.12.11, >= 24.0.0, < 24.0.12.7, >= 25.0.0, < 25.0.11, >= 26.0.0, < 26.0.6, >= 27.0.0, < 27.1.0—

06 References