CVE-2022-34858 CRITICAL

CVE-2022-34858: WordPress OAuth 2.0 client for SSO plugin <= 1.11.3 - Authentication Bypass vulnerability

Vendor Miniorange
Product OAuth 2.0 client for SSO (WordPress plugin)
Weakness CWE-306 · Missing auth
Published August 22, 2022
Last update April 28, 2026
View on NVD All CVEs

CVSS base score

9.8/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

Authentication Bypass vulnerability in miniOrange OAuth 2.0 client for SSO plugin <= 1.11.3 at WordPress.

Explanation of Vulnerability in Simple Terms

02Summary

The miniOrange OAuth 2.0 client for SSO plugin for WordPress contains a missing authentication vulnerability that allows unauthenticated attackers to execute arbitrary actions on the site. The plugin fails to properly validate user permissions before processing sensitive operations. No user interaction is required; an attacker can exploit this remotely by sending crafted requests to the vulnerable endpoint.

What an attacker can do

03Attacker Capabilities

Run arbitrary code or perform admin actions on the WordPress site without logging in.

Potential impact on your site

04Site Impact

Complete compromise of the WordPress site, including data theft, malware injection, and account takeover.

Conditions required to exploit

05Prerequisites

Network access to the WordPress site; no authentication or user interaction required.

Key dates

06Disclosure timeline

August 22, 2022 CVE published
April 28, 2026 Record updated