Cyber Posture

CVE-2025-67924

Critical

Published: 08 January 2026

Published
08 January 2026
Modified
27 April 2026
KEV Added
Patch
CVSS Score 9.9 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
EPSS Score 0.0008 23.8th percentile
Risk Priority 20 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-67924 is a critical-severity Unrestricted Upload of File with Dangerous Type (CWE-434) vulnerability. Its CVSS base score is 9.9 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Web Shell (T1100); ranked at the 23.8th percentile by exploit likelihood (below the median); 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 Web Shell (T1100) and 2 other techniques. What defenders deploy: see the NIST 800-53 controls recommended below.
Threat & Defense Details

Mitigating Controls (NIST 800-53 r5)AI

prevent

SI-10 enforces information input validation at file upload points to reject dangerous file types like web shells, directly preventing the unrestricted upload vulnerability.

prevent

SI-2 requires timely flaw remediation, such as patching the vulnerable Corpkit WordPress theme to eliminate the unrestricted file upload capability.

preventdetect

SI-3 deploys malicious code protection mechanisms to scan for and block execution of uploaded web shells on the web server.

MITRE ATT&CK Enterprise TechniquesAI

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.
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.
T1505.003 Web Shell Persistence
Adversaries may backdoor web servers with web shells to establish persistent access to systems.
Why these techniques?

Unrestricted file upload (CWE-434) in public-facing WordPress theme directly enables web shell deployment (T1100/T1505.003) via exploitation of exposed application (T1190).

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

NVD Description

Unrestricted Upload of File with Dangerous Type vulnerability in zozothemes Corpkit corpkit allows Upload a Web Shell to a Web Server.This issue affects Corpkit: from n/a through <= 2.0.

Deeper analysisAI

CVE-2025-67924 is an Unrestricted Upload of File with Dangerous Type vulnerability (CWE-434) in the Corpkit WordPress theme developed by zozothemes. The flaw allows attackers to upload a web shell to the web server. It affects Corpkit versions from n/a through 2.0 inclusive and was published on 2026-01-08T10:15:51.347.

The vulnerability carries a CVSS v3.1 base score of 9.9 (AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H). Low-privileged users (PR:L) with network access can exploit it remotely with low attack complexity and no user interaction required. Successful exploitation enables high-impact compromise of confidentiality, integrity, and availability across the affected scope due to the changed scope (S:C).

Patchstack advisories detail this arbitrary file upload vulnerability in the WordPress Corpkit theme version 2.0.

Details

CWE(s)

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References