What other currencies have same malleability vulnerability as Bitcoin?
This is a quite hard analysis to make. In general all alt-coins that are based on the concept of dynamic input-scripts and output-scripts are subject to transaction malleability. This is because anybody could change the input scripts of a transaction, by adding commands that wouldn't alter the validity of the script, but would alter its hash. For example adding OP_DROP will leave the stack exactly as before prior to scriptPubKey execution.