Cyber Resilience

CVE-2026-28094

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-2026-28094 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-2026-28094 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 RexCoin WordPress theme (rexcoin). The issue affects RexCoin versions from n/a through 1.2.6 and is associated with CWE-98.

The vulnerability is exploitable over the network (AV:N) by unauthenticated attackers (PR:N) with no user interaction required (UI:N), though it demands high attack complexity (AC:H) and results in unchanged scope (S:U). Successful exploitation yields high impacts on confidentiality, integrity, and availability (C:H/I:H/A:H), earning a CVSS v3.1 base score of 8.1 and potentially allowing severe compromise of the affected WordPress site.

Mitigation details are available in the Patchstack advisory at https://patchstack.com/database/Wordpress/Theme/rexcoin/vulnerability/wordpress-rexcoin-theme-1-2-6-local-file-inclusion-vulnerability?_s_id=cve, which covers the Local File Inclusion vulnerability in RexCoin theme version 1.2.6.

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 RexCoin rexcoin allows PHP Local File Inclusion.This issue affects RexCoin: from n/a through <= 1.2.6.

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 →
T1552.001 Credentials In Files Credential Access
Adversaries may search local file systems and remote file shares for files containing insecurely stored credentials.
attack.mitre.org →
Why these techniques?

The LFI vulnerability in a public-facing WordPress theme enables exploitation of public-facing applications (T1190), facilitating file and directory discovery (T1083) and access to unsecured credentials in local files like configuration files (T1552.001).

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

CVEs Like This One

CVE-2026-27080Shared CWE-98
CVE-2026-22397Shared CWE-98
CVE-2025-69409Shared CWE-98
CVE-2026-28034Shared CWE-98
CVE-2026-28053Shared CWE-98
CVE-2026-22478Shared CWE-98
CVE-2026-22415Shared CWE-98
CVE-2025-58803Shared CWE-98
CVE-2026-28021Shared CWE-98
CVE-2026-32500Shared CWE-98

Affected Assets

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-2 Flaw Remediation good match
prevent

Directly mandates timely remediation of the specific LFI vulnerability in RexCoin WordPress theme versions through n/a to <=1.2.6 by patching or removal.

SI-10 Information Input Validation good match
prevent

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

CM-6 Configuration Settings partial match
prevent

Requires secure PHP configuration settings like disabling allow_url_include and enforcing open_basedir to restrict file inclusion capabilities exploited by this CVE.

References