Shittr was a Twitter clone and part of ENOWARS 3. It provides user accounts, which can be registered using a username and password. Each user can then send messages, which can either be private or public, as well as set a status message in their profile. A user can also see and like other user’s messages. Private messages of other users are visible, but only appear as long base64-encoded strings.
Find out about the vulnerabilities in the writeup.