Translating CVC field with WPML and WooCommerce

Hi, i installed stripe payment gateway, together with WooCommerce, WooCommerce Multilingual and WPML.

The only thing I miss in the translation is the placeholder attribute for the cvc field – it seems to be taken only in the main language of the website (german in my case). If I visit the website in english, the placeholder is still in german. I saw that it is actually an iframe, so I cannot really do much. What can I do to make this work? Thanks in advance!