Is this vulnerability remotely exploitable over the internet?

Yes. If a vulnerable MW WP Form-based form is publicly accessible with an upload field and database saving enabled, an unauthenticated attacker can craft POST requests to exploit the issue remotely.

Does exploitation require authentication or special permissions?

No authentication is required under typical conditions. The main prerequisite is the ability to submit the affected form. However, if site-specific protections (such as IP allowlists, captchas, or access control plugins) restrict form submission, those controls can indirectly limit exploitability.

What is the safest general fix pattern for developers?

The safest pattern is to completely decouple user-supplied values from filesystem paths: normalize and validate all paths against a fixed, application-controlled base directory, disallow absolute and traversal paths, and generate internal file identifiers rather than using form field keys or user input as path components.

Severity:

HIGH RISK

(8.1)

Path Traversal / Arbitrary File Move (CWE-22) in MW WP Form for WordPress

CVE-2026-5436

Published:

Apr 8, 2026

Status:

Deferred

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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Vulnerability Type

Category:

Path Traversal / Arbitrary File System Access

CWE:

CWE-22

Impact:

Arbitrary File Move and Potential Remote Code Execution

Severity:

HIGH RISK

(8.1)

CVSS Version:

3.1

Vulnerability Type

Category:

Path Traversal / Arbitrary File System Access

CWE:

CWE-22

Impact:

Arbitrary File Move and Potential Remote Code Execution

Severity:

HIGH RISK

(8.1)

CVSS Version:

3.1

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Path Traversal / Arbitrary File Move (CWE-22) in MW WP Form for WordPress

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

(8.8)

PHP Code Injection via File Upload (CWE-94) in Aero CMS Admin Post Creation

HIGH RISK

HIGH

(8.8)

Code Injection (CWE-94) via Module Parameters in Evolution CMS

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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