Cyber Resilience

CVE-2026-28041

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-2026-28041 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-2026-28041 is an Improper Control of Filename for Include/Require Statement in PHP Program vulnerability, classified under CWE-98 and labeled as PHP Remote File Inclusion, that enables PHP Local File Inclusion in the Grit WordPress theme developed by AncoraThemes. This issue affects all versions of Grit from n/a through 1.0.1 inclusive. The vulnerability 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), indicating high severity due to its potential for significant impact.

Unauthenticated remote attackers can exploit this vulnerability over the network with high attack complexity and no user interaction required. Successful exploitation allows local file inclusion, enabling attackers to read arbitrary files on the server, which could lead to high impacts on confidentiality, integrity, and availability as reflected in the CVSS metrics.

Advisories, including the Patchstack database entry at https://patchstack.com/database/Wordpress/Theme/grit/vulnerability/wordpress-grit-theme-1-0-1-local-file-inclusion-vulnerability?_s_id=cve, detail the local file inclusion vulnerability in the Grit theme version 1.0.1 and provide guidance on mitigation.

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 AncoraThemes Grit grit allows PHP Local File Inclusion.This issue affects Grit: from n/a through <= 1.0.1.

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 →
Why these techniques?

The vulnerability is a Remote/Local File Inclusion flaw in a public-facing WordPress theme, directly enabling exploitation of public-facing applications without authentication.

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

Flaw remediation directly mitigates the PHP Local File Inclusion vulnerability by patching the improper filename control in the Grit WordPress theme.

SI-10 Information Input Validation good match
prevent

Information input validation ensures filenames passed to PHP include/require statements are sanitized and whitelisted to block arbitrary local file inclusion.

RA-5 Vulnerability Monitoring and Scanning partial match
detect

Vulnerability monitoring and scanning identifies the presence of this LFI vulnerability in the Grit theme, enabling timely remediation.

References