Cyber Posture

CVE-2025-22504

Critical

Published: 09 January 2025

Published
09 January 2025
Modified
23 April 2026
KEV Added
Patch
CVSS Score 10.0 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
EPSS Score 0.0028 51.3th percentile
Risk Priority 20 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-22504 is a critical-severity Unrestricted Upload of File with Dangerous Type (CWE-434) vulnerability. Its CVSS base score is 10.0 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 48.7% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).

Threat & Defense at a Glance

What attackers do: exploitation maps to Exploit Public-Facing Application (T1190) and 1 other technique. What defenders deploy: see the NIST 800-53 controls recommended below.
Threat & Defense Details

Mitigating Controls (NIST 800-53 r5)AI

prevent

Directly requires validation of file upload inputs to block dangerous types like web shells, addressing the core unrestricted upload vulnerability.

prevent

Mandates identification, reporting, and correction of the specific flaw in the 4ECPS Web Forms plugin, enabling timely patching to eliminate the vulnerability.

preventdetect

Deploys malicious code protection at web upload entry points to scan and block web shells attempting to be uploaded to the server.

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
T1100 Web Shell Persistence
A Web shell is a Web script that is placed on an openly accessible Web server to allow an adversary to use the Web server as a gateway into a network.
Why these techniques?

Direct arbitrary file upload to public-facing WordPress plugin enables web shell deployment (T1100) after exploiting the exposed application (T1190).

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1

NVD Description

Unrestricted Upload of File with Dangerous Type vulnerability in jumpdemand 4ECPS Web Forms 4ecps-webforms allows Upload a Web Shell to a Web Server.This issue affects 4ECPS Web Forms: from n/a through <= 0.2.18.

Deeper analysisAI

CVE-2025-22504 is an Unrestricted Upload of File with Dangerous Type vulnerability (CWE-434) in the 4ECPS Web Forms WordPress plugin by jumpdemand. This issue affects all versions of the 4ecps-webforms plugin up to and including 0.2.18, enabling attackers to upload a web shell directly to the web server.

The vulnerability carries a CVSS v3.1 base score of 10.0 (AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H), indicating it is exploitable remotely with low complexity, no privileges, and no user interaction required, while changing scope to achieve high impacts across confidentiality, integrity, and availability. Unauthenticated attackers can leverage this flaw to upload malicious files, such as web shells, potentially resulting in arbitrary code execution and full server compromise.

Patchstack's advisory documents this as an arbitrary file upload vulnerability specifically in 4ECPS Web Forms plugin version 0.2.18, available at https://patchstack.com/database/Wordpress/Plugin/4ecps-webforms/vulnerability/wordpress-4ecps-web-forms-plugin-0-2-18-arbitrary-file-upload-vulnerability?_s_id=cve. Security practitioners should consult this reference for detailed mitigation steps.

Details

CWE(s)

CVEs Like This One

CVE-2025-49387Shared CWE-434
CVE-2025-52353Shared CWE-434
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CVE-2025-14894Shared CWE-434
CVE-2025-65783Shared CWE-434
CVE-2025-44658Shared CWE-434
CVE-2026-37748Shared CWE-434
CVE-2025-50002Shared CWE-434
CVE-2026-1222Shared CWE-434

References