CVE-2023-23944

Name: CVE-2023-23944
Creator: NVD / NIST
Published: 2023-02-06T20:15:15.187+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.47%

Last modified Jun 17, 2026

CVE-2023-23944 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Nextcloud mail is an email app for the nextcloud home server platform. In versions prior to 2.2.2 user's passwords were stored in cleartext in the database during the duration of OAuth2 setup procedure. EPSS estimates a 0.47% chance of exploitation in the next 30 days.

Description

Nextcloud mail is an email app for the nextcloud home server platform. In versions prior to 2.2.2 user's passwords were stored in cleartext in the database during the duration of OAuth2 setup procedure. Any attacker or malicious user with access to the database would have access to these user passwords until the OAuth setup has been completed. It is recommended that the Nextcloud Mail app is upgraded to 2.2.2. There are no known workarounds for this issue.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

0.47%

37.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-312

Affected Software

Vendor	Product	Versions
Nextcloud	Mail	< 2.2.2

References

https://github.com/nextcloud/mail/pull/7797Patch
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-g86r-x755-93f4Vendor Advisory
https://hackerone.com/reports/1806275Permissions Required, Third Party Advisory
https://github.com/nextcloud/mail/pull/7797Patch
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-g86r-x755-93f4Vendor Advisory
https://hackerone.com/reports/1806275Permissions Required, Third Party Advisory

Timeline

Published: Feb 6, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-23944?

How severe is CVE-2023-23944?

CVE-2023-23944 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.47% probability of exploitation in the next 30 days.

How do I fix CVE-2023-23944?

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-2023-23944?

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

Scan your code now

Source: NVD / NIST