CVE Vulnerability

CVE-2022-39338

user_oidc is an OpenID Connect user backend for Nextcloud. Versions prior to 1.2.1 did not properly validate discovery urls which may lead to a stored cross site scripting attack vector. The impact is limited due to the restrictive CSP that is applied on this endpoint. Additionally this vulnerability has only been shown to be exploitable in the Safari web browser. This issue has been addressed in version 1.2.1. Users are advised to upgrade. Users unable to upgrade should urge their users to avoid using the Safari web browser.

5.4 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.3 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References
Link Resource
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-5fpw-795h-rg57 Third Party Advisory
https://github.com/nextcloud/user_oidc/pull/496 Patch Third Party Advisory
https://hackerone.com/reports/1687410 Permissions Required Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:nextcloud:openid_connect_user_backend:*:*:*:*:*:nextcloud:*:*
Information

Published : 2022-11-25 07:15

Updated : 2022-12-01 08:43

NVD link : CVE-2022-39338

Mitre link : CVE-2022-39338

Products Affected
No products.
CWE
CWE-20

CWE-79