CVE-2023-48305

low-risk
Published 2023-11-21

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).

Do I need to act?

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0.20% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.2/10 Medium
LOCAL / LOW complexity

Affected Products (2)

Affected Vendors

Nextcloud

References (8)

Vendor Advisory https://github.com/nextcloud/security-advisories/security/advisories/GHSA-35p6-4...
Exploit https://github.com/nextcloud/server/issues/38461
Issue Tracking https://github.com/nextcloud/server/pull/40013
Exploit https://hackerone.com/reports/2101165
Vendor Advisory https://github.com/nextcloud/security-advisories/security/advisories/GHSA-35p6-4...
Exploit https://github.com/nextcloud/server/issues/38461
Issue Tracking https://github.com/nextcloud/server/pull/40013
Exploit https://hackerone.com/reports/2101165
23
/ 100
low-risk
Severity 15/34 · Moderate
Exploitability 1/34 · Minimal
Exposure 7/34 · Low