The SmartCrawl SEO checker, analyzer & optimizer WordPress plugin before 3.16.3 does not perform capability checks on two of its AJAX actions, allowing users with at least the Subscriber role to read the titles of private and draft posts by ID and to enumerate stored post-meta key names.

The SmartCrawl SEO checker, analyzer & optimizer plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the updatesubmodule() 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.