Cyber Posture

CVE-2026-28012

High

Published: 05 March 2026

Published
05 March 2026
Modified
22 April 2026
KEV Added
—
Patch
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CVSS Score 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0016 37.1th percentile
Risk Priority 16 60% EPSS · 20% KEV · 20% CVSS

Description

Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in ThemeREX Gridiron gridiron allows PHP Local File Inclusion.This issue affects Gridiron: from n/a through <= 1.0.14.

Mitigating Controls (NIST 800-53 r5)AI

SI-2 Flaw Remediation good match
prevent

Directly mitigates the LFI vulnerability by requiring timely patching and updating of the vulnerable ThemeREX Gridiron WordPress theme.

SI-10 Information Input Validation good match
prevent

Enforces validation of user-supplied filenames used in PHP include/require statements to prevent improper local file inclusion.

CM-6 Configuration Settings partial match
prevent

Secures PHP configuration settings like open_basedir restrictions to limit the scope of file inclusion even if input validation fails.

Security SummaryAI

CVE-2026-28012 is an Improper Control of Filename for Include/Require Statement in PHP Program vulnerability, classified as PHP Remote File Inclusion but enabling PHP Local File Inclusion, in the ThemeREX Gridiron WordPress theme. This issue affects Gridiron versions from n/a through 1.0.14. It is associated with CWE-98 and received a CVSS v3.1 base score of 8.1 (AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H), indicating high severity due to network accessibility and significant impacts.

Remote, unauthenticated attackers can exploit this vulnerability over the network with high attack complexity and no user interaction required. Exploitation allows attackers to perform local file inclusion, potentially leading to high confidentiality, integrity, and availability impacts on the affected system.

The Patchstack advisory (https://patchstack.com/database/Wordpress/Theme/gridiron/vulnerability/wordpress-gridiron-theme-1-0-14-local-file-inclusion-vulnerability?_s_id=cve) documents this local file inclusion vulnerability in the WordPress Gridiron theme version 1.0.14.

Details

CWE(s)
CWE-98

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.
attack.mitre.org →
Why these techniques?

The vulnerability is a remote Local File Inclusion (LFI) in a public-facing WordPress theme, directly enabling exploitation of a public-facing application for initial access and potential code execution.

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

References