Safari 6.2.7 for OS X 10.8 Mountain Lion:
http://swcdn.apple.com/content/downloads/15/59/031-21808/qylh17vrdgnipjibo2avj3nbw8y2pzeito/Safari6.2.7MountainLion.pkg
Safari 7.1.7 for OS X 10.9 Mavericks:
http://swcdn.apple.com/content/downloads/53/32/031-21811/yy87w772g3sy39agd76ro7xirstgwlpgvw/Safari7.1.7Mavericks.pkg