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).

Classification

CVE ID: CVE-2023-48305

CVSS Base Severity: MEDIUM

CVSS Base Score: 4.2

Affected Products

Vendor: nextcloud

Product: security-advisories

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.05% (probability of being exploited)

EPSS Percentile: 19.47% (scored less or equal to compared to others)

EPSS Date: 2025-02-03 (when was this score calculated)

References

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-35p6-4992-w5fr
https://github.com/nextcloud/server/issues/38461
https://github.com/nextcloud/server/pull/40013
https://hackerone.com/reports/2101165

Timeline