CVE-2023-48305

Name: CVE-2023-48305
Creator: NVD / NIST
Published: 2023-11-21T23:15:07.373+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.4/10EPSS 0.25%

Last modified Jun 17, 2026

CVE-2023-48305 is a medium-severity vulnerability rated 4.4/10 on the CVSS scale. Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 25.0.0 and prior to versions 25.0.11, 26.0.6, and 27.1.0 of Nextcloud Server and Nextcloud Enterprise Server, when the log level was set to debug, the user_ldap app logged user passwords in plaintext into the log file. EPSS estimates a 0.25% chance of exploitation in the next 30 days.

Description

Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 25.0.0 and prior to versions 25.0.11, 26.0.6, and 27.1.0 of Nextcloud Server and Nextcloud Enterprise Server, when the log level was set to debug, the user_ldap app logged user passwords in plaintext into the log file. If the log file was then leaked or shared in any way the users' passwords would be leaked. Nextcloud Server and Nextcloud Enterprise Server versions 25.0.11, 26.0.6, and 27.1.0 contain a patch for this issue. As a workaround, change config setting `loglevel` to `1` or higher (should always be higher than 1 in production environments).

Metrics

CVSS 3.1

4.4/10

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

EPSS Probability

0.25%

15.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-312

Affected Software

Vendor	Product	Versions
Nextcloud	Nextcloud Server	>= 25.0.0, < 25.0.11
Nextcloud	Nextcloud Server	>= 26.0.0, < 26.0.6
Nextcloud	Nextcloud Server	>= 27.0.0, < 27.1.0

References

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-35p6-4992-w5frVendor Advisory
https://github.com/nextcloud/server/issues/38461Exploit, Issue Tracking
https://github.com/nextcloud/server/pull/40013Issue Tracking, Patch
https://hackerone.com/reports/2101165Exploit, Third Party Advisory
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-35p6-4992-w5frVendor Advisory
https://github.com/nextcloud/server/issues/38461Exploit, Issue Tracking
https://github.com/nextcloud/server/pull/40013Issue Tracking, Patch
https://hackerone.com/reports/2101165Exploit, Third Party Advisory

Timeline

Published: Nov 21, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-48305?

How severe is CVE-2023-48305?

CVE-2023-48305 has a CVSS score of 4.4/10 (MEDIUM severity). The EPSS model estimates a 0.25% probability of exploitation in the next 30 days.

How do I fix CVE-2023-48305?

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-2023-48305?

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

Scan your code now

Source: NVD / NIST