A French cybersecurity researcher is reporting that Android ES File Explorer app can allow others on your local network to remotely access a file on your phone.

The app, which has more than 100 million Android installs and is designed to allow for the management of all varieties of file types, has a major open port issue allowing access to the device, found Elliot Alderson.

“The surprise is: if you opened the app at least once, anyone connected to the same local network can remotely get a file from your phone,” Alderson tweeted.

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