Input validation vulnerability in Ajax Search Pro 4.18.7

The Ajax Search Pro plugin for WordPress has a security vulnerability that affects versions up to and including 4.18.7. An attacker who is able to trick a site administrator into clicking on a link can make a malicious request that the plugin cannot protect against, allowing the attacker to perform certain actions. Additionally, the plugin does not properly sanitize and escape input, allowing the attacker to store malicious code on the site.