CVE-2023-48305 json
Nextcloud Server user_ldap app logs user passwords in the log file on level debug
published 2023-11-21 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-52365
- cvss
- 4.2
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 15%
- public exploits
- 0
- none known
Summary
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).
Patch / fix
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 23 mo ago
Exploit prediction
0.25% chance of exploitation in the next 30 days, higher than 15% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/nextcloud/server/issues/38461 referenced PoC, tagged "exploit" by a source, unverified
- hackerone.com https://hackerone.com/reports/2101165 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.2 | CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N |
| NVD | 3.1 | 4.4 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N |
Affected products
- nextcloud security-advisories
Classification
- Weakness
-
- CWE-312 Cleartext Storage of Sensitive Information
References
-
github.com
/nextcloud/server/pull/40013
issue-tracking, patch
-
github.com
/nextcloud/server/issues/38461
exploit, issue-tracking
-
hackerone.com
/reports/2101165
exploit, third-party-advisory
-
github.com
/nextcloud/security-advisories/security/advisories/GHSA-35p6-4992-w5fr
vendor-advisory
Sources
- CVE List CVE-2023-48305
- NVD CVE-2023-48305
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