Cyber Resilience

CVE-2026-28043

Critical

Published: 05 March 2026

Published
05 March 2026
Modified
22 April 2026
KEV Added
—
Patch
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CVSS Score v3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0040 32.1th percentile
Risk Priority 70 floored blend · peak EPSS

Summary

CVE-2026-28043 is a critical-severity PHP Remote File Inclusion (CWE-98) vulnerability. Its CVSS base score is 9.8 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 32.1th 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-2026-28043 is an Improper Control of Filename for Include/Require Statement in PHP Program vulnerability, classified as a PHP Remote File Inclusion issue but enabling PHP Local File Inclusion, in the ThemeREX Healer - Doctor, Clinic & Medical WordPress Theme. This flaw affects all versions of the Healer theme from unknown initial release through 1.0.0. It is associated with CWE-98 and carries a CVSS v3.1 base score of 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), marking it as critical.

The vulnerability can be exploited by any unauthenticated remote attacker requiring no user interaction and low attack complexity. Successful exploitation allows high-impact compromise of confidentiality, integrity, and availability, potentially enabling arbitrary local file inclusion that could lead to sensitive data disclosure or code execution depending on server configuration.

Advisories, including the Patchstack database entry at https://patchstack.com/database/Wordpress/Theme/healer/vulnerability/wordpress-healer-doctor-clinic-medical-wordpress-theme-theme-1-0-0-local-file-inclusion-vulnerability?_s_id=cve, provide details on the vulnerability in the Healer WordPress theme version 1.0.0.

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 Healer - Doctor, Clinic & Medical WordPress Theme healer allows PHP Local File Inclusion.This issue affects Healer - Doctor, Clinic & Medical WordPress…

more

Theme: from n/a through <= 1.0.0.

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 an unauthenticated remote code execution or local file inclusion flaw in a public-facing WordPress theme, directly enabling exploitation of public-facing applications.

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 the CVE by requiring timely identification, reporting, and patching of the vulnerable PHP code in the Healer WordPress theme to eliminate the LFI flaw.

SI-10 Information Input Validation good match
prevent

Enforces validation of user-controlled inputs to PHP include/require statements, preventing arbitrary local file inclusion by rejecting malicious filenames.

AC-6 Least Privilege partial match
prevent

Limits the impact of successful LFI exploitation by enforcing least privilege on the web server process, restricting access to sensitive local files.

References