Cyber Resilience

CVE-2026-28031

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-2026-28031 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-2026-28031 is an Improper Control of Filename for Include/Require Statement in PHP Program vulnerability, known as PHP Remote File Inclusion but enabling PHP Local File Inclusion, in the ThemeREX Invetex WordPress theme. This issue affects Invetex versions from n/a through 2.18 and is associated with CWE-98. The vulnerability carries 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), indicating high severity due to network accessibility and potential for significant impacts.

Unauthenticated remote attackers can exploit this vulnerability over the network without requiring user interaction, though exploitation demands high attack complexity. Successful attacks enable high-level compromise of confidentiality, integrity, and availability, potentially allowing local file inclusion that could lead to arbitrary code execution, data disclosure, or system disruption on affected WordPress installations using the vulnerable theme.

The Patchstack advisory provides details on this WordPress Invetex theme vulnerability at https://patchstack.com/database/Wordpress/Theme/invetex/vulnerability/wordpress-invetex-theme-2-18-local-file-inclusion-vulnerability?_s_id=cve, including guidance on patches and mitigations.

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 Invetex invetex allows PHP Local File Inclusion.This issue affects Invetex: from n/a through <= 2.18.

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 file inclusion (RFI/LFI) in a public-facing WordPress theme, directly enabling exploitation of a public-facing application.

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-10 Information Input Validation good match
prevent

SI-10 directly prevents LFI by requiring validation of untrusted inputs used in PHP include/require statements to ensure only allowed filenames are processed.

SI-2 Flaw Remediation good match
prevent

SI-2 mandates timely identification, reporting, and patching of flaws like this LFI vulnerability in the Invetex WordPress theme.

CM-6 Configuration Settings partial match
prevent

CM-6 enforces restrictive PHP configuration settings such as open_basedir to limit file access paths and mitigate LFI exploitation.

References