Input validation vulnerability in Flickr Shortcode Importer 2.2.3

The Flickr Shortcode Importer plugin for WordPress has a security issue in versions up to 2.2.3. This means that hackers with administrator-level access can inject a malicious code into the plugin. There is no known solution for this issue, but if there is another plugin or theme installed on the system, it could allow the hacker to do more damage such as deleting files, accessing sensitive information, or running their own code.