InstaWP Connect < 0.1.4.2 - Authenticated Plugin Settings Update via instawp_update_settings

Description

The plugin does not perform a capability check on its plugin-settings update action, verifying only a nonce, allowing an authenticated user holding a low-privileged role that an administrator has granted access to the plugin's sync feature to overwrite the plugin's settings, including the setting controlling which roles may access that feature. The role grant is not enabled by default.