Board Thread:Speculation House/@comment-14138255-20160807005311/@comment-25936766-20161013004228

A bullet can make a linear wound if it grazes you (is that the word?). A cross-shaped wound? Not at all, that's just too unbelievable.

Not to mention, Cinder knows how to block bullets, even before getting full Maiden powers.

If she got a + or x shaped scar, it was either from a blade, or some thing. Hell, probably caused by herself as some sort of self-punishment for her perceived "failure" at foresighting Ruby having the Silver Eyes (even after meeting face-to-face, twice).