Input validation vulnerability in Anti-Malware Security and Brute-Force Firewall 4.21.96

The Anti-Malware Security and Brute-Force Firewall plugin for WordPress has a security flaw that allows hackers to remotely execute code on the server. This is because the plugin has weak protection against brute force attacks and does not require proper authorization. If exploited, this vulnerability could allow unauthorized individuals to add malicious code and potentially harm the website.