CVE-2023-25160

Name: CVE-2023-25160
Creator: NVD / NIST
Published: 2023-02-13T21:15:14.673+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 0.46%

Last modified Jun 17, 2026

CVE-2023-25160 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. 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. EPSS estimates a 0.46% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

5.3/10

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

EPSS Probability

0.46%

36.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Nextcloud	Mail	< 1.11.8
Nextcloud	Mail	>= 1.12.0, < 1.12.9
Nextcloud	Mail	>= 1.13.0, < 1.14.5
Nextcloud	Mail	>= 2.0.0, < 2.2.1

References

https://github.com/nextcloud/mail/pull/7740Patch
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-m45f-r5gh-h6cxVendor Advisory
https://hackerone.com/reports/1784681Permissions Required, Third Party Advisory
https://github.com/nextcloud/mail/pull/7740Patch
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-m45f-r5gh-h6cxVendor Advisory
https://hackerone.com/reports/1784681Permissions Required, Third Party Advisory

Timeline

Published: Feb 13, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-25160?

How severe is CVE-2023-25160?

CVE-2023-25160 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.46% probability of exploitation in the next 30 days.

How do I fix CVE-2023-25160?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-25160?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST