CVE-2026-27383
Published: 05 March 2026
Summary
CVE-2026-27383 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 16.8th 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).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
Directly addresses improper control of filenames in PHP include/require statements by enforcing input validation to prevent local file inclusion.
Requires timely identification, reporting, and correction of the specific PHP Local File Inclusion flaw in the Metro WordPress theme versions through 2.13.
Boundary protection via web application firewalls detects and blocks network-based exploitation attempts targeting the file inclusion vulnerability.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Remote file inclusion (LFI/RFI) flaw in public-facing WordPress theme directly enables unauthenticated network exploitation (T1190); commonly results in arbitrary PHP code execution via web shell inclusion (T1505.003).
NVD Description
Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in RadiusTheme Metro metro allows PHP Local File Inclusion.This issue affects Metro: from n/a through <= 2.13.
Deeper analysisAI
CVE-2026-27383 is an Improper Control of Filename for Include/Require Statement in PHP Program vulnerability, referred to as PHP Remote File Inclusion, present in the RadiusTheme Metro WordPress theme. This flaw enables PHP Local File Inclusion and affects the Metro theme from unspecified initial versions through version 2.13 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 it can be exploited over the network by unauthenticated attackers requiring high attack complexity and no user interaction. Successful exploitation allows attackers to achieve high impacts on confidentiality, integrity, and availability.
Mitigation details are available in the Patchstack advisory at https://patchstack.com/database/Wordpress/Theme/metro/vulnerability/wordpress-metro-theme-2-13-local-file-inclusion-vulnerability?_s_id=cve.
Details
- CWE(s)