Anti-Malware Security and Brute-Force Firewall <= 4.21.85 - Authenticated (Admin+) PHP Object Injection

The Anti-Malware Security and Brute-Force Firewall plugin for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 4.21.85 via deserialization of untrusted input. This allows attackers, with administrative privileges, to inject a PHP Object. No POP chain is present in the vulnerable plugin. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve