Cyber Resilience

CVE-2026-28034

High

Published: 05 March 2026

Published
05 March 2026
Modified
22 April 2026
KEV Added
—
Patch
—
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-2026-28034 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-2026-28034 is an Improper Control of Filename for Include/Require Statement vulnerability, classified as a PHP Local File Inclusion (LFI) issue under CWE-98, affecting the ThemeREX Progress WordPress theme. The vulnerability impacts all versions from n/a through 1.2 inclusive and was published on 2026-03-05.

The vulnerability has 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 network accessibility with no privileges or user interaction required, though high attack complexity is needed. Attackers can exploit it remotely to achieve high impacts on confidentiality, integrity, and availability, potentially allowing inclusion of arbitrary local files via PHP include/require statements.

The Patchstack advisory at https://patchstack.com/database/Wordpress/Theme/progress/vulnerability/wordpress-progress-theme-1-2-local-file-inclusion-vulnerability?_s_id=cve details this Local File Inclusion vulnerability in Progress theme version 1.2 and provides guidance for practitioners on associated 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 Progress progress allows PHP Local File Inclusion.This issue affects Progress: from n/a through <= 1.2.

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 →
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 →
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?

LFI in public-facing WordPress theme allows unauthenticated exploitation (T1190) to read arbitrary local files (T1005, T1083), including those with credentials (T1552.001).

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

CVEs Like This One

CVE-2025-69409Shared 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
CVE-2025-26137Shared CWE-98
CVE-2025-59558Shared CWE-98
CVE-2026-28028Shared CWE-98

Affected Assets

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-10 Information Input Validation good match
prevent

SI-10 mandates validation of user-supplied inputs used in PHP include/require statements, directly preventing improper filename control exploited in this LFI vulnerability.

SI-2 Flaw Remediation good match
prevent

SI-2 requires timely identification, reporting, and correction of flaws like CVE-2026-28034 in the ThemeREX Progress WordPress theme.

CM-6 Configuration Settings partial match
prevent

CM-6 establishes and documents secure configuration settings for PHP, such as open_basedir restrictions, to limit the scope of local file access in LFI exploits.

References