Cyber Resilience

CVE-2026-28058

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 0.0040 32.0th percentile
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2026-28058 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 32.0th 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-2026-28058 is an Improper Control of Filename for Include/Require Statement vulnerability in PHP programs, specifically a PHP Remote File Inclusion issue that enables PHP Local File Inclusion (CWE-98). It affects the ThemeREX Dixon WordPress theme, with all versions up to and including 1.4.2.1 vulnerable. The vulnerability was published on 2026-03-05 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).

Remote attackers without privileges can exploit this vulnerability over the network, though it requires high attack complexity and no user interaction. Successful exploitation allows high-impact compromise of confidentiality, integrity, and availability, enabling attackers to include and potentially execute arbitrary local files on the server.

Mitigation details are documented in advisories such as the Patchstack database entry for the WordPress Dixon theme vulnerability: https://patchstack.com/database/Wordpress/Theme/dixon/vulnerability/wordpress-dixon-theme-1-4-2-1-local-file-inclusion-vulnerability?_s_id=cve.

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 Dixon dixon allows PHP Local File Inclusion.This issue affects Dixon: from n/a through <= 1.4.2.1.

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 →
T1083 File and Directory Discovery Discovery
Adversaries may enumerate files and directories or may search in specific locations of a host or network share for certain information within a file system.
attack.mitre.org →
Why these techniques?

LFI vulnerability in public-facing WordPress theme enables unauthenticated remote exploitation of public-facing application (T1190) and arbitrary local file reads for file and directory discovery (T1083).

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

CVEs Like This One

CVE-2025-49371Shared CWE-98
CVE-2025-53442Shared CWE-98
CVE-2025-60050Shared CWE-98
CVE-2025-60055Shared CWE-98
CVE-2026-28069Shared CWE-98
CVE-2025-58898Shared CWE-98
CVE-2026-22380Shared CWE-98
CVE-2025-58933Shared CWE-98
CVE-2026-22432Shared CWE-98
CVE-2026-28097Shared CWE-98

Affected Assets

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-2 Flaw Remediation good match
prevent

Directly remediates the specific PHP file inclusion vulnerability in the Dixon WordPress theme by requiring timely patching or updating to a non-vulnerable version.

SI-10 Information Input Validation good match
prevent

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

CM-6 Configuration Settings partial match
prevent

Establishes secure baseline configurations for PHP and web servers, such as disabling allow_url_include and enforcing open_basedir, to restrict file inclusion capabilities.

References