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CVE-2026-28148— WordPress Headless Single Sign On plugin <= 1.6 - Bypass Vulnerability vulnerability

Quick assessment

Affected
miniOrange Headless Single Sign On
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress Headless SSO Plugin for WP是WordPress基金会开源的一款为无头内容管理系统提供单点登录认证的插件。 WordPress Headless SSO Plugin for WP 1.6及之前版本存在加密问题漏洞，该漏洞源于未认证绕过，可能导致未授权访问。

CVSS 9.8 · Critical EPSS 0.34% · P26

Possible ATT&CK Techniques 1 AI

T1133 · External Remote Services

Affected Version Matrix 1

VendorProduct Version RangeStatus
miniOrange Headless Single Sign On n/a≤ 1.6 affected
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I. Basic Information for CVE-2026-28148

Vulnerability Information
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Vulnerability Title
WordPress Headless Single Sign On plugin <= 1.6 - Bypass Vulnerability vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Unauthenticated Bypass Vulnerability in Headless Single Sign On <= 1.6 versions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
密码学签名的验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress Headless SSO Plugin for WP 加密问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress Headless SSO Plugin for WP是WordPress基金会开源的一款为无头内容管理系统提供单点登录认证的插件。 WordPress Headless SSO Plugin for WP 1.6及之前版本存在加密问题漏洞，该漏洞源于未认证绕过，可能导致未授权访问。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
miniOrange Headless Single Sign On n/a ~ 1.6 -

II. Public POCs for CVE-2026-28148

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III. Intelligence Information for CVE-2026-28148

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Vendor Advisories for CVE-2026-28148 (1)

Same Patch Batch · miniOrange · 2026-08-13 · 5 CVEs total

CVE-2026-61967 9.8 CRITICAL WordPress miniorange otp verification plugin <= 5.5.1 - Privilege Escalation vulnerability
CVE-2026-28008 9.8 CRITICAL WordPress OAuth Single Sign On – SSO (OAuth Client) plugin <= 7.0.0 - Broken Authenticatio
CVE-2026-28149 9.8 CRITICAL WordPress Headless Single Sign On plugin <= 1.6 - PHP Object Injection vulnerability
CVE-2026-61979 8.1 HIGH WordPress SAML SP Single Sign On plugin <= 5.4.3 - Privilege Escalation vulnerability

IV. Related Vulnerabilities

Same product: Headless Single Sign On
Same vendor: miniOrange
Same weakness: CWE-347

V. Comments for CVE-2026-28148

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