May a surrogate mother be used in Islam?

No; using another woman's womb to carry the couple's embryo is forbidden according to the national fatwa and the majority of contemporary scholars.
It confuses lineage and creates disputes over who the real mother is, whereas the Qur'an links motherhood to the woman who gives birth. Even if the embryo is from a lawfully married couple, placing it in another woman's womb brings a third party into what is lawful only between husband and wife. Couples facing womb problems can seek other treatment and the advice of a religious officer. See Fertility & IVF.