Being against female promiscuity while praising or ignoring male promiscuity is definitely misogyny.
Edit: Additionally, being against both in the current society is, while not necessarily misogynist in itself, contributing to a misogynistic society - there's many more people who will speak up to tell a man that the weird-ass person who told them they're bad for being promiscuous is wrong then would tell a woman the same, the result being that telling a woman that she's bad for enjoying sex has more impact than telling a man the same. You don't actually see many masculine-gendered terms for shaming the enjoyment of sex, and those that do exist are not used in a derogatory context very often.