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OpenAdvisories
Medium · 6.6 CVE-2021-4451 EUVD-2021-34636GHSA-pgv2-9j82-2qcq

NinjaFirewall <= 4.3.3 - Authenticated PHAR Deserialization

Published Oct 16, 2024 · Updated Apr 8, 2026 · Assigned by Wordfence

Description

The NinjaFirewall plugin for WordPress is vulnerable to Authenticated PHAR Deserialization in versions up to, and including, 4.3.3. This allows authenticated attackers to perform phar deserialization on the server. This deserialization can allow other plugin or theme exploits if vulnerable software is present (WordPress, and NinjaFirewall).

Affected products

VendorProductAffectedFixed
nintechnet NinjaFirewall (WP Edition) – Advanced Security Plugin and Firewall < 4.3.4 4.3.4

References