CVE-2023-23943 - Vulnerability Details - OpenCVE

Nextcloud mail is an email app for the nextcloud home server platform. In affected versions the SMTP, IMAP and Sieve host fields allowed to scan for internal services and servers reachable from within the local network of the Nextcloud Server. It is recommended that the Nextcloud Maill app is upgraded to 1.15.0 or 2.2.2. The only known workaround for this issue is to completely disable the nextcloud mail app.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Changed

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00439.

Exploitation poc

Automatable no

Technical Impact partial

Vendors	Products
Nextcloud	Mail

Configuration 1 [-]

OR	cpe:2.3:a:nextcloud:mail::::::::
	cpe:2.3:a:nextcloud:mail::::::::

No data.

No data.

Advisories

Source	ID	Title
EUVD	EUVD-2023-28009	Nextcloud mail is an email app for the nextcloud home server platform. In affected versions the SMTP, IMAP and Sieve host fields allowed to scan for internal services and servers reachable from within the local network of the Nextcloud Server. It is recommended that the Nextcloud Maill app is upgraded to 1.15.0 or 2.2.2. The only known workaround for this issue is to completely disable the nextcloud mail app.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://github.com/nextcloud/mail/pull/7796
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-8gcx-r739-9pf6
https://hackerone.com/reports/1736390
https://hackerone.com/reports/1741525
https://hackerone.com/reports/1746582

History

Mon, 10 Mar 2025 22:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2023-02-06T20:18:33.641Z

Updated: 2025-03-10T21:16:03.230Z

Reserved: 2023-01-19T21:12:31.362Z

Link: CVE-2023-23943

Vulnrichment

Updated: 2024-08-02T10:49:08.130Z

NVD

Status : Modified

Published: 2023-02-06T21:15:09.810

Modified: 2024-11-21T07:47:09.140

Link: CVE-2023-23943

Redhat

No data.

OpenCVE Enrichment

No data.

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