Leadster < 1.1.3 - Cross-Site Request Forgery via leadster_script_code_action

Description

The Leadster plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.1.2. This is due to missing or incorrect nonce validation on the leadster_script_code_action function. This makes it possible for unauthenticated attackers to modify the leadester script code via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.