CVE-2026-40757 - Vulnerability Details - OpenCVE

Unauthenticated PHP Object Injection in Château <= 1.2.1 versions.

No CVSS v4.0

Attack Vector Network

Attack Complexity High

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.

The EPSS score is 0.0025.

Exploitation none

Automatable no

Technical Impact total

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

Vendor Product Default status Versions

Mikado-Themes

Château

unaffected

Version	Status	Constraints
`n/a`	affected	≤ 1.2.1

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

Update the WordPress Château Theme to the latest available version (at least 1.3).

Workaround

No workaround given by the vendor.

References

Link	Providers
https://patchstack.com/database/wordpress/theme/chateau/vulnerability/wordpress-chateau-theme-1-2-1-php-object-injection-vulnerability?_s_id=cve

History

Thu, 18 Jun 2026 04:45:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Wed, 17 Jun 2026 14:00:00 +0000

Type	Values Removed	Values Added
Description		Unauthenticated PHP Object Injection in Château <= 1.2.1 versions.
Title		WordPress Château theme <= 1.2.1 - PHP Object Injection vulnerability
Weaknesses		CWE-502
References		https://patchstack.com/database/wordpress/theme/chateau/vulnerability/wordpress-chateau-theme-1-2-1-php-object-injection-vulnerability?_s_id=cve
Metrics		cvssV3_1 `{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: Patchstack

Published: 2026-06-17T12:47:39.301Z

Updated: 2026-06-17T15:28:24.231Z

Reserved: 2026-04-15T09:20:25.914Z

Link: CVE-2026-40757

Vulnrichment

Updated: 2026-06-17T14:11:05.344Z

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-06-18T11:45:15Z

Weaknesses

CWE-502

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