CVE-2026-66665
Received Received - Intake

Unauthenticated Arbitrary File Upload in Type Hub

Publication date: 2026-08-06

Last updated on: 2026-08-06

Assigner: Patchstack

Description
Unauthenticated Arbitrary File Upload in Type Hub <= 2.0.6 versions.

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Meta Information

Published
2026-08-06
Last Modified
2026-08-06
Generated
2026-08-06
AI Q&A
2026-08-06
EPSS Evaluated
N/A
NVD
CVE-2026-66665
EUVD
EUVD-2026-53891

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
patchstack type_hub_plugin to 2.0.6 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-434 The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.

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Executive Summary

This is an Unauthenticated Arbitrary File Upload vulnerability in the WordPress Type Hub Plugin versions up to 2.0.6. It allows attackers to upload any file type without authentication, including malicious files that can compromise the website.

Detection Guidance

Check if the Type Hub plugin version 2.0.6 or lower is installed on your WordPress site. Look for unexpected file uploads in directories like /wp-content/uploads/. Monitor for unusual network traffic or unauthorized file creation.

Impact Analysis

Attackers can exploit this to upload backdoors or malicious files, gaining full control of the website. This can lead to data theft, defacement, or further attacks on visitors. The vulnerability is already being exploited in mass campaigns.

Compliance Impact

This vulnerability could lead to data breaches, violating GDPR and HIPAA requirements for data protection. Organizations may face legal penalties, fines, and reputational damage due to unauthorized access and data exposure.

Mitigation Strategies

Disable the Type Hub plugin immediately if installed. Apply Patchstack's temporary mitigation rule if available. Contact your hosting provider or developer for further assistance. Monitor for signs of compromise.

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