Vulnerability Monitor

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CVE-2023-48305

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).

Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 4.2, requiring local system access to exploit with relatively low complexity though user interaction is required . The vulnerability impacts limited data confidentiality, limited integrity, for affected systems. Impacting 1 product from nextcloud organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2023, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.

Published

2023-11-21T23:15:07.373

Last Modified

2024-11-21T08:31:27.090

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 4.2 (MEDIUM)

Weaknesses

Type: Secondary
CWE-312

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	nextcloud	nextcloud_server	< 25.0.11	Yes
Application	nextcloud	nextcloud_server	< 25.0.11	Yes
Application	nextcloud	nextcloud_server	< 26.0.6	Yes
Application	nextcloud	nextcloud_server	< 26.0.6	Yes
Application	nextcloud	nextcloud_server	< 27.1.0	Yes
Application	nextcloud	nextcloud_server	< 27.1.0	Yes

References

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-35p6-4992-w5fr Vendor Advisory ([email protected])
https://github.com/nextcloud/server/issues/38461 Exploit, Issue Tracking ([email protected])
https://github.com/nextcloud/server/pull/40013 Issue Tracking, Patch ([email protected])
https://hackerone.com/reports/2101165 Exploit, Third Party Advisory ([email protected])
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-35p6-4992-w5fr Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/nextcloud/server/issues/38461 Exploit, Issue Tracking (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/nextcloud/server/pull/40013 Issue Tracking, Patch (af854a3a-2127-422b-91ae-364da2661108)
https://hackerone.com/reports/2101165 Exploit, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For nextcloud's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.