Correct. "To marry" is actually one of these rare verbs that can be both transitive and intransitive.

And like somebody pointed out earlier, it can either mean that the subject is the one getting married or that they are performing the ceremony.

Here, "married" is a past participle, and the headline is in the passive voice. Headlines from Google News analogous to this post's title:

-Sleep apnea linked to cancer in latest studies -Falcon 9 countdown aborted in last second before launch -Apple, Samsung CEOs set for court talks