PostgreSQL 9.2.x before 9.2.4 and 9.1.x before 9.1.9 does not properly check REPLICATION privileges, which allows remote authenticated users to bypass intended backup restrictions by calling the (1) pg_start_backup or (2) pg_stop_backup functions.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 44.3%