CVE-2026-28008

CRITICAL 9.8

WordPress OAuth Single Sign On – SSO (OAuth Client) plugin <= 7.0.0 - Broken Authentication vulnerability

CVSS Score

9.8

EPSS Score

0.0%

EPSS Percentile

0th

Unauthenticated Broken Authentication in OAuth Single Sign On – SSO (OAuth Client) <= 7.0.0 versions.

CWE	CWE-290
Vendor	miniorange
Product	oauth single sign on – sso (oauth client)
Published	Aug 13, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

miniOrange / OAuth Single Sign On – SSO (OAuth Client)

n/a ≤ 7.0.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

patchstack.com: https://patchstack.com/database/wordpress/plugin/miniorange-login-with-eve-online-google-facebook/vulnerability/wordpress-oauth-single-sign-on-sso-oauth-client-plugin-7-0-0-broken-authentication-vulnerability?_s_id=cve

Credits

tomcat102 | Patchstack Bug Bounty Program