Is this vulnerability remotely exploitable over the network?

Yes. Any remote client that can connect to a vulnerable ProFTPD instance and control or influence the reverse DNS entry for its source IP can attempt to exploit this issue.

Does an attacker need authenticated FTP access to exploit this?

Not necessarily. The vulnerable code path is triggered during the handling of a connection when reverse DNS lookup occurs and the result is used in SQL queries. This can happen before authentication, depending on the configuration of `mod_wrap2_sql`.

What is the safest general fix pattern for developers and integrators?

The safest pattern is to refactor all queries that include hostnames or other network-derived values to use parameterized SQL APIs, treating these values strictly as bound parameters, and to apply strict validation on DNS-derived data before it ever reaches the database.

Severity:

HIGH RISK

(8.1)

SQL Injection (CWE-89) via Reverse DNS in ProFTPD mod_wrap2_sql

CVE-2026-44331

Published:

May 5, 2026

Status:

Received

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

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May 6, 2026

Vulnerability Type

Category:

SQL Injection

CWE:

CWE-89

Impact:

SQL Injection leading to data exposure, modification, or privilege manipulation in the ProFTPD backing database

Severity:

HIGH RISK

(8.1)

CVSS Version:

3.1

Vulnerability Type

Category:

SQL Injection

CWE:

CWE-89

Impact:

SQL Injection leading to data exposure, modification, or privilege manipulation in the ProFTPD backing database

Severity:

HIGH RISK

(8.1)

CVSS Version:

3.1

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SQL Injection (CWE-89) via Reverse DNS in ProFTPD mod_wrap2_sql

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

HIGH RISK

HIGH

(8.6)

Server-Side Request Forgery (CWE-918) in OpenClaw Zalo Plugin sendPhoto

HIGH RISK

HIGH

(8.8)

Authorization Bypass (CWE-863) in OpenClaw Matrix Room Control Commands

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

Ship clean & secure code faster

Ship clean & secure code faster

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