CVE-2026-28090

High

Published: 05 March 2026

Published

05 March 2026

Modified

22 April 2026

KEV Added

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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-2026-28090 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-2026-28090 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, affecting the ThemeREX Gamezone WordPress theme. This issue impacts all versions from n/a through 1.1.11, as published on 2026-03-05. It is associated with CWE-98 and carries a CVSS 3.1 base score of 8.1 (AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H).

Unauthenticated remote attackers can exploit this vulnerability over the network without user interaction, though it requires high attack complexity. Successful exploitation allows attackers to achieve high impacts on confidentiality, integrity, and availability, potentially enabling local file inclusion to read sensitive files or execute arbitrary code under certain conditions.

The Patchstack advisory provides details on this Local File Inclusion vulnerability in the WordPress Gamezone theme version 1.1.11, available at https://patchstack.com/database/Wordpress/Theme/gamezone/vulnerability/wordpress-gamezone-theme-1-1-11-local-file-inclusion-vulnerability?_s_id=cve. Practitioners should consult it for specific patch or mitigation recommendations.

OWASP Top 10 for Web (2025)

EU & UK References

🇪🇺 ENISA EUVD: EUVD-2026-9745

Vulnerability details

Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in ThemeREX Gamezone gamezone allows PHP Local File Inclusion.This issue affects Gamezone: from n/a through <= 1.1.11.

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?

The vulnerability is a Remote/Local File Inclusion in a public-facing WordPress theme, directly enabling exploitation of a public-facing application for remote code execution.

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