CVE-2023-25162

Nextcloud Server vulnerable to SSRF via filter bypass due to lax checking on IPs

MEDIUM
5.3
CVSS Score
Published: February 13, 2023 at 08:34 PM UTC
Updated: June 17, 2026 at 05:40 AM UTC
1 product affected across 1 vendorNextcloud/server

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.8%
SSVC
PoC

Description

Nextcloud Server is the file server software for Nextcloud, a self-hosted productivity platform. Nextcloud Server prior to 24.0.8 and 23.0.12 and Nextcloud Enterprise server prior to 24.0.8 and 23.0.12 are vulnerable to server-side request forgery (SSRF). Attackers can leverage enclosed alphanumeric payloads to bypass IP filters and gain SSRF, which would allow an attacker to read crucial metadata if the server is hosted on the AWS platform. Nextcloud Server 24.0.8 and 23.0.2 and Nextcloud Enterprise Server 24.0.8 and 23.0.12 contain a patch for this issue. No known workarounds are available.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 23.0.1224.0.0 ≤ v < 24.0.8
Affected range stops below 23.0.12, so it looks safe — our inference, not a vendor statement
Affected range stops below 24.0.8, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUMGitHub_M
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-918

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