The Request a Quote Form plugin for WordPress is vulnerable to Remote Code Execution in version less than, or equal to, 2.5.2 via the emd_form_builder_lite_pagenum function. This is due to the plugin not properly validating user input before using it as a function name. This makes it possible for unauthenticated attackers to execute code on the server, however, parameters can not be passed to the functions called.
The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes code syntax before using the input in a dynamic evaluation call (e.g. "eval").