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CVE

CWE

Training

CVE-2023-23943

Published: Feb 6, 2023

Modified: Mar 10, 2025

PUBLISHED

CVSS v3.1

5.0

MEDIUM

Description

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.

Vendor	Product	Versions
nextcloud	security-advisories	affected `>= 2.0.0, < 2.2.2` affected `< 1.15.0`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

None

Availability

None

References

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-8gcx-r739-9pf6

x_refsource_CONFIRM

https://github.com/nextcloud/mail/pull/7796

x_refsource_MISC

https://hackerone.com/reports/1736390

x_refsource_MISC

https://hackerone.com/reports/1741525

x_refsource_MISC

https://hackerone.com/reports/1746582

x_refsource_MISC

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