CVE-2024-37312

MEDIUM

Nextcloud User Oidc < 5.0.0 - Improper Access Control

Title source: rule

Description

user_oidc app is an OpenID Connect user backend for Nextcloud. Missing access control on the ID4me endpoint allows an attacker to register an account eventually getting access to data that is available to all registered users. It is recommended that the OpenID Connect user backend is upgraded to 3.0.0 (Nextcloud 20-23), 4.0.0 (Nexcloud 24) or 5.0.0 (Nextcloud 25-28).

References (3)

Core 3

Core References

Vendor Advisory x_refsource_confirm

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-vw7g-959g-vj6q

Patch x_refsource_misc

https://github.com/nextcloud/user_oidc/commit/9f68a716ecd264160a7c098b8840313f1ac855f2

View Patch ZIP pw:eip

Exploit, Third Party Advisory x_refsource_misc

https://hackerone.com/reports/2376929

Scores

CVSS v3 6.3

EPSS 0.0047

EPSS Percentile 64.5%

Attack Vector ADJACENT_NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-284

Status published

Products (1)

nextcloud/user_oidc < 5.0.0

Published Jun 14, 2024

Tracked Since Feb 18, 2026