CVE-2026-28149 - Vulnerability Details - OpenCVE

Unauthenticated PHP Object Injection in Headless Single Sign On <= 1.6 versions.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

miniOrange

Headless Single Sign On

unaffected

Version	Status	Constraints
`n/a`	affected	≤ 1.6

No data.

No data.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

Update the WordPress Headless Single Sign On plugin to the latest available version (at least 1.6.1).

Workaround

No workaround given by the vendor.

References

Link	Providers
https://patchstack.com/database/wordpress/plugin/headless-single-sign-on/vulnerability/wordpress-headless-single-sign-on-plugin-1-6-php-object-injection-vulnerability?_s_id=cve

History

Thu, 13 Aug 2026 14:00:00 +0000

Type	Values Removed	Values Added
Description		Unauthenticated PHP Object Injection in Headless Single Sign On <= 1.6 versions.
Title		WordPress Headless Single Sign On plugin <= 1.6 - PHP Object Injection vulnerability
Weaknesses		CWE-502
References		https://patchstack.com/database/wordpress/plugin/headless-single-sign-on/vulnerability/wordpress-headless-single-sign-on-plugin-1-6-php-object-injection-vulnerability?_s_id=cve
Metrics		cvssV3_1 `{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: Patchstack

Published: 2026-08-13T13:36:27.374Z

Updated: 2026-08-13T15:23:45.729Z

Reserved: 2026-02-25T12:14:24.000Z

Link: CVE-2026-28149

Vulnrichment

No data.

NVD

Status : Received

Published: 2026-08-13T14:16:58.070

Modified: 2026-08-13T14:16:58.070

Link: CVE-2026-28149

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-502

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