Cyber Posture

CVE-2026-28054

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 Legal Stone legal-stone allows PHP Local File Inclusion.This issue affects Legal Stone: from n/a through <= 1.2.11.

Mitigating Controls (NIST 800-53 r5)AI

SI-2 Flaw Remediation good match
prevent

Directly remediates the PHP Local File Inclusion flaw in Legal Stone theme versions <=1.2.11 by applying vendor patches or code fixes.

SI-10 Information Input Validation good match
prevent

Validates untrusted inputs controlling PHP include/require filenames to block path traversal and arbitrary local file execution.

SC-7 Boundary Protection partial match
preventdetect

Deploys boundary protections like web application firewalls to inspect and block remote file inclusion payloads targeting the vulnerable theme.

Security SummaryAI

CVE-2026-28054 is an Improper Control of Filename for Include/Require Statement in PHP Program vulnerability, classified as PHP Remote File Inclusion (CWE-98), in the ThemeREX Legal Stone WordPress theme. The flaw enables PHP Local File Inclusion and affects Legal Stone versions from n/a through 1.2.11. It was published on 2026-03-05 with 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).

Unauthenticated attackers can exploit this vulnerability remotely over the network with high attack complexity and no user interaction required. Successful exploitation grants high-impact access to confidentiality, integrity, and availability, potentially allowing attackers to include and execute local PHP files on the server.

Mitigation details are available in the Patchstack advisory at https://patchstack.com/database/Wordpress/Theme/legal-stone/vulnerability/wordpress-legal-stone-theme-1-2-11-local-file-inclusion-vulnerability?_s_id=cve.

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 →
T1005 Data from Local System Collection
Adversaries may search local system sources, such as file systems, configuration files, local databases, virtual machine files, or process memory, to find files of interest and sensitive data prior to Exfiltration.
attack.mitre.org →
Why these techniques?

Public-facing LFI vulnerability in WordPress theme exploited remotely without authentication (T1190), directly enabling inclusion and access to arbitrary local files for data collection (T1005).

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

References