CVE-2022-3119: OAuth client Single Sign On for WordPress < 3.0.4 - Unauthenticated Settings Update to Authentication Bypass

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2022-09-26 · updated 2026-06-17
Weakness: CWE-287

Description

The OAuth client Single Sign On WordPress plugin before 3.0.4 does not have authorisation and CSRF when updating its settings, which could allow unauthenticated attackers to update them and change the OAuth endpoints to ones they controls, allowing them to then be authenticated as admin if they know the correct email address

Affected products

OAuth client Single Sign On for WordPress ( OAuth 2.0 SSO ): before 3.0.4 — fixed in 3.0.4

How to fix

Upgrade to a fixed version: OAuth client Single Sign On for WordPress ( OAuth 2.0 SSO ) 3.0.4. Check the vendor advisory for mitigations.

References

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