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CVE-2023-39958

nvd nist
Published: Aug 10, 2023Modified: Jun 17, 2026

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5.3
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Exploitability: 3.9 / Impact: 1.4
Source: NVD

Description

Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 22.0.0 and prior to versions 22.2.10.13, 23.0.12.8, 24.0.12.5, 25.0.9, 26.0.4, and 27.0.1, missing protection allows an attacker to brute force the client secrets of configured OAuth2 clients. Nextcloud Server versions 25.0.9, 26.0.4, and 27.0.1 and Nextcloud Enterprise Server versions 22.2.10.13, 23.0.12.8, 24.0.12.5, 25.0.9, 26.0.4, and 27.0.1 contain a patch for this issue. No known workarounds are available.

Affected (9)

Nextcloud
1 product
Nextcloud Server
Configuration A
9 vulnerable
Vulnerable SoftwareAffected Versions
Nextcloud
Nextcloud Server
From 25.0.0 to 25.0.9
Nextcloud Server
From 26.0.0 to 26.0.4
Nextcloud Server
From 22.0.0 to 22.2.10.14
Nextcloud Server
From 23.0.0 to 23.0.12.9
Nextcloud Server
From 24.0.0 to 24.0.12.5
Nextcloud Server
From 25.0.0 to 25.0.9
Nextcloud Server
From 26.0.0 to 26.0.4
Nextcloud Server
Version 27.0.0
Nextcloud Server
Version 27.0.0

Related CWEs

CWE-307
Improper Restriction of Excessive Authentication Attempts
The product does not implement sufficient measures to prevent multiple failed authentication attempts within a short time frame, making it more susceptible to brute force attacks.

References (6)

Source: security-advisories@github.com
Vendor Advisory
Source: security-advisories@github.com
PatchVendor Advisory
Source: security-advisories@github.com
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory

Timeline

No history available yet.