Input validation vulnerability in Backend Localization 2.1.10

The Backend Localization plugin for WordPress has a security vulnerability in versions prior to 2.1.10. This vulnerability makes it possible for someone to change the settings of the plugin without having permission to do so. To exploit this vulnerability, an unauthenticated attacker would have to get a site administrator to click on a link or perform another action. This is because the plugin does not have adequate security to prevent someone from changing the settings without permission.