SQL injection vulnerability in pgAdmin 4 Maintenance Tool.
Four user-supplied JSON fields (buffer_usage_limit, vacuum_parallel, vacuum_index_cleanup, reindex_tablespace) were concatenated directly into the rendered VACUUM/ANALYZE/REINDEX command and passed to psql --command. An authenticated user with the tools_maintenance permission could break out of the option syntax and execute arbitrary SQL on the connected PostgreSQL server. The injected SQL could in turn invoke COPY ... TO PROGRAM to escalate to operating-system command execution on the database host.
Fix introduces server-side allow-listing of all four fields and switches reindex_tablespace from manual quoting to the qtIdent filter.
This issue affects pgAdmin 4: before 9.15.
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 8.8
Authenticated pgAdmin user with tools_maintenance permission. SQL injection escalates within the privileges already granted to the user's database connection; RCE via COPY ... TO PROGRAM additionally requires PostgreSQL superuser on the target connection. S:U reflects that the impact remains within the user's existing database privilege scope rather than crossing a security authority boundary.
| Attack Vector |
Network |
Scope |
Unchanged |
| Attack Complexity |
Low |
Confidentiality Impact |
High |
| Privileges Required |
Low |
Integrity Impact |
High |
| User Interaction |
None |
Availability Impact |
High |
Authenticated pgAdmin user with tools_maintenance permission. SQL injection escalates within the privileges already granted to the user's database connection; RCE via COPY ... TO PROGRAM additionally requires PostgreSQL superuser on the target connection. S:U reflects that the impact remains within the user's existing database privilege scope rather than crossing a security authority boundary.
CVSS 3.1
CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS Score: 8.7
Authenticated pgAdmin user with tools_maintenance permission. SQL injection escalates within the privileges already granted to the user's database connection; RCE via COPY ... TO PROGRAM additionally requires PostgreSQL superuser on the target connection. S:U reflects that the impact remains within the user's existing database privilege scope rather than crossing a security authority boundary.
| Exploitability Metrics |
Vulnerable System Impact Metrics |
Subsequent System Impact Metrics |
| Attack Vector |
Network |
Confidentiality |
High |
Confidentiality |
None |
| Attack Complexity |
Low |
Integrity |
High |
Integrity |
None |
| Attack Requirements |
None |
Availability |
High |
Availability |
None |
| Privileges Required |
Low |
| User Interaction |
None |
Authenticated pgAdmin user with tools_maintenance permission. SQL injection escalates within the privileges already granted to the user's database connection; RCE via COPY ... TO PROGRAM additionally requires PostgreSQL superuser on the target connection. S:U reflects that the impact remains within the user's existing database privilege scope rather than crossing a security authority boundary.
CVSS 4.0