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CVE-2023-45151 Details

Description

Nextcloud server is an open source home cloud platform. Affected versions of Nextcloud stored OAuth2 tokens in plaintext which allows an attacker who has gained access to the server to potentially elevate their privilege. This issue has been addressed and users are recommended to upgrade their Nextcloud Server to version 25.0.8, 26.0.3 or 27.0.1. There are no known workarounds for this vulnerability.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:8.8 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CNA: [email protected]CVSS-B:6.5 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-hhgv-jcg9-p4m9	CVE	Vendor Advisory
https://github.com/nextcloud/server/pull/38398	CVE	Issue TrackingPatch
https://hackerone.com/reports/1994324	CVE	Permissions Required
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-hhgv-jcg9-p4m9	[email protected]	Vendor Advisory
https://github.com/nextcloud/server/pull/38398	[email protected]	Issue TrackingPatch
https://hackerone.com/reports/1994324	[email protected]	Permissions Required

see all 6 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-312	Cleartext Storage of Sensitive Information	[email protected]
CWE-312	Cleartext Storage of Sensitive Information	[email protected]

Affected Products

Product	Versions
nextcloud nextcloud server	>= 25.0.0, < 25.0.8 >= 26.0.0, < 26.0.3 27.0.0
CPE cpe:2.3:a:nextcloud:nextcloud_server:::::-:::* cpe:2.3:a:nextcloud:nextcloud_server:::::enterprise:::* cpe:2.3:a:nextcloud:nextcloud_server:27.0.0::::-::: cpe:2.3:a:nextcloud:nextcloud_server:27.0.0::::enterprise::: Remediation No remediation found in references.

Change History

5 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Oct 20, 2023	Initial Analysis	[email protected]