CVE-2023-45151 - CVE House

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Status published Medium CVE-2023-45151

OAuth2 client_secret stored in plain text in the Nextcloud database

6.5 CVSS

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

More from nextcloud

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Affected Vendor

nextcloud

View all reports →

Affected Software

security-advisories

Vulnerable Versions:

>= 25.0.0, < 25.0.8, >= 26.0.0, < 26.0.3, >= 27.0.0, < 27.0.1

Timeline

Official Publish: October 16th, 2023

Last Modified: September 16th, 2024

Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

Weaknesses (CWE)

MITRE ATT&CK TTPs

T1005 Data from Local System

T1552 Unsecured Credentials

Credential Access

T1530 Data from Cloud Storage

T1078 Valid Accounts

T1041 Exfiltration Over C2 Channel