Cyber Posture

CVE-2026-27996

High

Published: 05 March 2026

Published
05 March 2026
Modified
22 April 2026
KEV Added
—
Patch
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CVSS Score 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0016 37.1th percentile
Risk Priority 16 60% EPSS · 20% KEV · 20% CVSS

Description

Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in ThemeREX Lingvico lingvico allows PHP Local File Inclusion.This issue affects Lingvico: from n/a through <= 1.0.14.

Mitigating Controls (NIST 800-53 r5)AI

SI-2 Flaw Remediation good match
prevent

SI-2 requires timely flaw remediation, directly addressing the PHP LFI vulnerability in the Lingvico theme by patching improper filename controls in include/require statements.

SI-10 Information Input Validation good match
prevent

SI-10 mandates information input validation at system entry points, preventing exploitation by validating user-supplied filenames before PHP include/require operations.

CM-6 Configuration Settings partial match
prevent

CM-6 enforces secure baseline configuration settings for PHP, such as open_basedir restrictions, limiting the impact of local file inclusion by constraining accessible file paths.

Security SummaryAI

CVE-2026-27996 is an Improper Control of Filename for Include/Require Statement in PHP Program vulnerability, classified as a PHP Local File Inclusion (LFI) issue, affecting the ThemeREX Lingvico WordPress theme. This flaw impacts all versions of Lingvico from n/a through 1.0.14 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 its potential for significant impact.

Unauthenticated remote attackers can exploit this vulnerability over the network, though it requires high attack complexity and no user interaction. Exploitation enables attackers to perform local file inclusion, potentially leading to high impacts on confidentiality, integrity, and availability, such as unauthorized access to sensitive local files or further compromise depending on server configuration.

Mitigation details are available in the Patchstack advisory at https://patchstack.com/database/Wordpress/Theme/lingvico/vulnerability/wordpress-lingvico-theme-1-0-14-local-file-inclusion-vulnerability?_s_id=cve. Security practitioners should review this reference for patching instructions and update to a fixed version if available.

Details

CWE(s)
CWE-98

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 →
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?

The LFI vulnerability in the public-facing WordPress theme directly enables exploitation of public-facing applications (T1190) and facilitates arbitrary local file reads for data from the local system (T1005) and extraction of unsecured credentials in files (T1552.001), potentially leading to code execution.

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

References