HOMEVULNERABILITIESCVE-2023-28409
CRITICAL

CVE-2023-28409

CWE-434Published: May 23, 2023· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

Unrestricted upload of file with dangerous type exists in MW WP Form versions v4.4.2 and earlier, which may allow a remote unauthenticated attacker to upload an arbitrary file.

NVD Source

Risk Analysis

MW WP Form versions 4.4.2 and earlier allow unauthenticated remote attackers to upload arbitrary files due to unrestricted file type validation. This critical flaw could lead to remote code execution on the affected server.

There is no known public exploit, but the vulnerability is remotely exploitable with low complexity.

Recommended Action

Upgrade to the latest version of MW WP Form. Implement strict file extension and MIME type filtering for all user uploads.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2023-28409 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

mw_wp_form_project1 product(s)
mw wp form
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

All References (4)

Quick Facts

CVE IDCVE-2023-28409
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-434
CISA KEVNo
Affected1 vendor(s)
PublishedMay 23, 2023

Related CVEs (CWE-434)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2023-28409 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.