Can malware be transferred to devices through a micro usb wall charger? (i ll explain below)?

Can malware be transferred to devices through a micro usb wall charger? (i ll explain below)?
Added (1). i plugged my phone charger for my Microsoft lumia 435, which is a micro usb going into a wall unit, (just micro USB to power, NOT to micro USB to USB to power), into my tablet by mistake for like a second (everyone in my house uses this tablet, so it's bound to have something on it),
can the tablet put something onto the micro USB charger? (i assumed because the charger is DC that it couldn't coz electricity only travels one way, I thought I'd ask just in case),

Thanks in advance

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