The Theravadan Buddhist perspective says that Buddhist has a pluralistic view of religion. The Buddha was suggested to say the following about the validity of other religions in the Mahaparinibbana Sutta.
"In whatever Dhamma and Discipline the Noble Eightfold Path is not found, no ascetic is found of the first, the second, the third, or the fourth grade. But such ascetics can be found, of the first, second, third or fourth grade in a Dhamma and Discipline where the Noble Eightfold Path is found. Now, Subhadda, in this Dhamma and Discipline the Noble Eightfold Path is found, and in it are to be found ascetics of the first, second, third or fourth grade."
The "Noble Eightfold Path" is a group of 8 "corrects" that when put into practice lead to Enlightenment. These 8 are correct view, correct intention, correct speech, correct livelihood, correct effort, correct mindfullness, correct meditation.
Note that these 8 "corrects" are qualities that can be done and are done in other religious (and non religious) groups.
While all Buddhist accept these 8 "corrects" as needed to reach Enlightenment, they have a lot of disagreement of how to define them.
Some Buddhists sects view "correct livelihood" to mean vegetarianism is necessary, while other sects view it is not necessary.
Some Buddhist sects view chastity as necessary to achieve "correct meditation", other sects do not view chastity as necessary or beneficial towards "correct meditation".
Within the religion, many Buddhist accept the view that there are many roads leading to the same place.
While other religions may not call living virtuously and with self-restraint, the "Eight Noblefold Path" and may call it "The Ten Commandements" or "The Word According to the Book"
are they not really the same thing?