SmartCrawl SEO checker, analyzer & optimizer <= 3.14.3 - Missing Authorization to Plugin Settings Update

The SmartCrawl SEO checker, analyzer & optimizer plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the update_submodule() function in all versions up to, and including, 3.14.3. This makes it possible for authenticated attackers, with Subscriber-level access and above, to update the plugin's setttings.