CVE-2026-66600
Deferred Deferred - Pending Action

Author Arbitrary File Upload in Media Library Assistant

Publication date: 2026-08-20

Last updated on: 2026-08-20

Assigner: Patchstack

Description
Author Arbitrary File Upload in Media LIbrary Assistant <= 3.39 versions.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published
2026-08-20
Last Modified
2026-08-20
Generated
2026-08-20
AI Q&A
2026-08-20
EPSS Evaluated
N/A
NVD
CVE-2026-66600
EUVD
EUVD-2026-63341

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
media_library_assistant media_library_assistant to 3.39 (inc)
arbitrary_file_upload media_library_assistant to 3.39 (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.

Attack-Flow Graph

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Executive Summary

This vulnerability is an Arbitrary File Upload flaw in the WordPress Media Library Assistant Plugin versions 3.39 and below. It allows attackers to upload malicious files, such as backdoors, to a website without proper validation. The issue has a high CVSS score of 9.1 due to its potential impact on confidentiality, integrity, and availability of the system.

Detection Guidance

Check the installed version of the Media Library Assistant plugin in your WordPress admin panel. If it is version 3.39 or below, the system is vulnerable. Use commands like 'wp plugin list' in WP-CLI or inspect the plugin files in the /wp-content/plugins/media-library-assistant/ directory to verify the version.

Impact Analysis

Attackers could exploit this to upload malicious files, gaining unauthorized access to the website. This may lead to further attacks, data breaches, or complete system compromise. The vulnerability affects all websites using the vulnerable plugin versions, regardless of size or popularity.

Compliance Impact

This vulnerability could lead to data breaches, violating GDPR and HIPAA requirements for data protection and security. Non-compliance may result in legal penalties, fines, or reputational damage due to unauthorized access to sensitive data.

Mitigation Strategies

Update the Media Library Assistant plugin to version 3.40 or higher immediately. If updating is not possible, apply the mitigation rule provided by Patchstack to block file upload attacks until the update is applied.

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