Is this vulnerability remotely exploitable over the internet?

Yes, if phpPgAdmin is exposed over the network and accessible to authenticated users, an attacker can exploit it remotely through the web interface, provided the necessary database privileges and PostgreSQL features are enabled.

Does an attacker need valid credentials to exploit this issue?

Yes. The described scenario requires authenticated access to phpPgAdmin with the ability to create tables and run `COPY` statements. The exact risk depends heavily on which database roles are mapped to those authenticated users.

What is the safest general fix pattern for this vulnerability class?

The safest pattern is to prevent web-exposed users from invoking database features that can spawn OS commands or access the filesystem. This typically means disabling or tightly restricting `COPY FROM PROGRAM` for web-facing roles and segregating administrative operations from regular user actions.

Severity:

HIGH RISK

(8.8)

OS Command Injection via COPY FROM PROGRAM (CWE-78) in phpPgAdmin 7.13.0

CVE-2021-47853

Published:

Jan 21, 2026

Status:

Undergoing Analysis

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-306

CRITICAL RISK

CRITICAL

(9.8)

Missing Authentication for Forgot-Password Email Change API (CWE-306)

Account Takeover / Loss of Account Control

February 17, 2026

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in node-sonos-http-api TTS Provider for macOS

Remote Code Execution on the Server Host

February 17, 2026

Vulnerability Type

Category:

OS Command Injection

CWE:

CWE-78

Impact:

Remote Code Execution

Severity:

HIGH RISK

(8.8)

CVSS Version:

3.1

Vulnerability Type

Category:

OS Command Injection

CWE:

CWE-78

Impact:

Remote Code Execution

Severity:

HIGH RISK

(8.8)

CVSS Version:

3.1

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OS Command Injection via COPY FROM PROGRAM (CWE-78) in phpPgAdmin 7.13.0

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

CRITICAL RISK

CRITICAL

(9.8)

Missing Authentication for Forgot-Password Email Change API (CWE-306)

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in node-sonos-http-api TTS Provider for macOS

Vulnerability Type

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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