Cyber Resilience

CVE-2026-28032

High

Published: 05 March 2026

Published
05 March 2026
Modified
22 April 2026
KEV Added
—
Patch
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CVSS Score v3.1 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0042 33.1th percentile
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2026-28032 is a high-severity PHP Remote File Inclusion (CWE-98) vulnerability. Its CVSS base score is 8.1 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 33.1th 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).

Deeper analysis

CVE-2026-28032 is an Improper Control of Filename for Include/Require Statement in PHP Program vulnerability, classified as a PHP Remote File Inclusion issue that enables PHP Local File Inclusion in the ThemeREX Tuning WordPress theme. This flaw affects Tuning versions from n/a through 1.3 inclusive. It is associated with CWE-98 and carries 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 attackers without privileges or user interaction can exploit this vulnerability, though it requires high attack complexity. Successful exploitation allows local file inclusion, potentially enabling attackers to read sensitive files, execute arbitrary code under certain conditions, or disrupt system availability, aligning with the high confidentiality, integrity, and availability impacts in the CVSS metrics.

The Patchstack advisory at https://patchstack.com/database/Wordpress/Theme/tuning/vulnerability/wordpress-tuning-theme-1-3-local-file-inclusion-vulnerability?_s_id=cve details the vulnerability in the WordPress Tuning theme version 1.3 and provides guidance on mitigation. Security practitioners should consult this reference for patch availability or workaround recommendations specific to affected installations.

OWASP Top 10 for Web (2025)

A05:2025 Injection

EU & UK References

Vulnerability details

Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in ThemeREX Tuning tuning allows PHP Local File Inclusion.This issue affects Tuning: from n/a through <= 1.3.

CWE(s)
CWE-98

Related Threats

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?

CVE-2026-28032 is a PHP Remote/Local File Inclusion vulnerability in a public-facing WordPress theme, enabling unauthenticated attackers to exploit the web application over the network.

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

CVEs Like This One

CVE-2025-58923Shared CWE-98
CVE-2025-69057Shared CWE-98
CVE-2024-54263Shared CWE-98
CVE-2026-28035Shared CWE-98
CVE-2026-28024Shared CWE-98
CVE-2025-67525Shared CWE-98
CVE-2025-22707Shared CWE-98
CVE-2025-69375Shared CWE-98
CVE-2026-22443Shared CWE-98
CVE-2025-53198Shared CWE-98

Affected Assets

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-2 Flaw Remediation good match
prevent

Directly mitigates CVE-2026-28032 by requiring timely patching or updating of the vulnerable ThemeREX Tuning WordPress theme to versions beyond 1.3.

SI-10 Information Input Validation good match
prevent

Prevents exploitation of the PHP Local File Inclusion vulnerability by validating user-supplied filenames or paths before use in include/require statements.

CM-6 Configuration Settings partial match
prevent

Enforces secure PHP configuration settings like open_basedir restrictions to limit the impact of improper filename controls in file inclusion operations.

References