CVE-2026-39478
Deferred Deferred - Pending Action
Contributor PHP Object Injection in Anti-Malware Security and Brute-Force Firewall

Publication date: 2026-06-15

Last updated on: 2026-06-15

Assigner: Patchstack

Description
Contributor PHP Object Injection in Anti-Malware Security and Brute-Force Firewall <= 4.23.87 versions.
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Meta Information
Published
2026-06-15
Last Modified
2026-06-15
Generated
2026-06-16
AI Q&A
2026-06-16
EPSS Evaluated
N/A
NVD
CVE-2026-39478
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
patchstack anti-malware_security_and_brute-force_firewall to 4.23.87 (inc)
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-502 The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.
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Executive Summary

This vulnerability is a PHP Object Injection issue found in the Anti-Malware Security and Brute-Force Firewall plugin versions up to and including 4.23.87. PHP Object Injection occurs when untrusted user input is unserialized, allowing an attacker to inject malicious objects that can lead to unexpected behavior in the application.

Impact Analysis

The vulnerability has a high severity with a CVSS base score of 8.8, indicating it can have a significant impact. It allows an attacker with low privileges to execute code remotely without user interaction, potentially leading to complete compromise of confidentiality, integrity, and availability of the affected system.

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