Vulnerabilities > CVE-2023-39953 - Unspecified vulnerability in Nextcloud User Oidc

047910
CVSS 4.8 - MEDIUM
Attack vector
NETWORK
Attack complexity
HIGH
Privileges required
NONE
Confidentiality impact
LOW
Integrity impact
LOW
Availability impact
NONE
network
high complexity
nextcloud
NVD
Published: 2023-08-10
Updated: 2024-11-21

Summary

user_oidc provides the OIDC connect user backend for Nextcloud, an open-source cloud platform. Starting in version 1.0.0 and prior to version 1.3.3, missing verification of the issuer would have allowed an attacker to perform a man-in-the-middle attack returning corrupted or known token they also have access to. user_oidc 1.3.3 contains a patch. No known workarounds are available.

Vulnerable Configurations

Part Description Count
Application
Nextcloud
7

References