CVE-2026-28148

CRITICAL 9.8

WordPress Headless Single Sign On plugin <= 1.6 - Bypass Vulnerability vulnerability

CVSS Score

9.8

EPSS Score

0.0%

EPSS Percentile

0th

Unauthenticated Bypass Vulnerability in Headless Single Sign On <= 1.6 versions.

CWE	CWE-347
Vendor	miniorange
Product	headless single sign on
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 / Headless Single Sign On

n/a ≤ 1.6

References

NVD ↗ CVE.org ↗ EPSS Data ↗

patchstack.com: https://patchstack.com/database/wordpress/plugin/headless-single-sign-on/vulnerability/wordpress-headless-single-sign-on-plugin-1-6-bypass-vulnerability-vulnerability?_s_id=cve

Credits

Asim Alshaya | Patchstack Bug Bounty Program