CVE-2023-25160 | BDVDB-2026-0043 Detail

nextcloudsecurity-advisories

Description#

Nextcloud Mail is an email app for the Nextcloud home server platform. Prior to versions 2.2.1, 1.14.5, 1.12.9, and 1.11.8, an attacker can access the mail box by ID getting the subjects and the first characters of the emails. Users should upgrade to Mail 2.2.1 for Nextcloud 25, Mail 1.14.5 for Nextcloud 22-24, Mail 1.12.9 for Nextcloud 21, or Mail 1.11.8 for Nextcloud 20 to receive a patch. No known workarounds are available.

Impact#

Per CVSS v3.1: confidentiality impact low, integrity impact none, availability impact none. Attack vector: network.

Weaknesses#

CWE-639 Authorization Bypass Through User-Controlled Key

References#

Exploit#

No public exploit known

History#

Version 12023-02-13Record published in the CVE List.
Version 22025-03-10Most recent update recorded in the CVE List.

Published

Published: 2023-02-13
Last modified: 2025-03-10

Vendor information

Vendor: nextcloud
Product: security-advisories

All nextcloud vulnerabilities

Score

4.1 Medium

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 40.1.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Insecure Direct Object Reference

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
< 1.11.8
Fixed
Not stated
Vulnerable
>= 1.12.0, < 1.12.9
Fixed
Not stated
Vulnerable
>= 1.13.0, < 1.14.5
Fixed
Not stated
Vulnerable
>= 2.0.0, < 2.2.1
Fixed
Not stated

Scoring System

CVSS v4.0

Not available

CVSS v3.1

4.1 Medium

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

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	Low
User Interaction	Required
Scope	Changed
Confidentiality	Low
Integrity	None
Availability	None

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).