Vulnerability Report

CVE-2024-37312

Title: Nextcloud User Oidc Auth Bypass

Auth Bypass

Proof Of Concept

No public PoC currently indexed for CVE-2024-37312.

CWE Category CWE-284
Published Date Jun 14, 2024
Modified Date Aug 14, 2025
Exploit Status Not Found
Score 6.3 CVSS v3.1
Exploit Probability (EPSS)
0.64%

Vulnerability Summary

CVE-2024-37312: 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).

Impacted Vendors

N
nextcloud 1

Reference Links

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-vw7g-959g-vj6q https://github.com/nextcloud/user_oidc/commit/9f68a716ecd264160a7c098b8840313f1ac855f2 https://hackerone.com/reports/2376929 https://github.com/nextcloud/security-advisories/security/advisories/GHSA-vw7g-959g-vj6q https://github.com/nextcloud/user_oidc/commit/9f68a716ecd264160a7c098b8840313f1ac855f2 https://hackerone.com/reports/2376929
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
6.3
Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
6.3
Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2024-37312 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector ADJACENT_NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Affected Stack

No specific products linked.