CVE-2023-48305

Nextcloud Server user_ldap app logs user passwords in the log file on level debug

MEDIUM
4.4
CVSS Score
Published: November 21, 2023 at 10:17 PM UTC
Updated: June 17, 2026 at 06:33 AM UTC
1 product affected across 1 vendorNextcloud/server

Using security-advisories by nextcloud?

Get instant alerts when new vulnerabilities affect security-advisories - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM4.4
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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).

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

25.0.0 ≤ v < 25.0.1126.0.0 ≤ v < 26.0.627.0.0 ≤ v < 27.1.0
Affected range stops below 25.0.11, so it looks safe — our inference, not a vendor statement
Affected range stops below 26.0.6, so it looks safe — our inference, not a vendor statement
Affected range stops below 27.1.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (4)

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-312

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card