CVE-2026-28069 in Le Truffe Plugin
Summary
by MITRE • 03/05/2026
Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in ThemeREX Le Truffe letruffe allows PHP Local File Inclusion.This issue affects Le Truffe: from n/a through <= 1.1.7.
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Analysis
by VulDB Data Team • 03/07/2026
The CVE-2026-28069 vulnerability represents a critical PHP Remote File Inclusion flaw within the ThemeREX Le Truffe letruffe WordPress theme, specifically impacting versions through 1.1.7. This vulnerability stems from improper control of filename parameters in include/require statements, creating a dangerous attack vector that allows malicious actors to execute arbitrary code on affected systems. The flaw resides in how the theme processes user-supplied input when determining which files to include, effectively bypassing normal file access controls and enabling unauthorized remote code execution.
The technical implementation of this vulnerability occurs when the theme accepts user-provided parameters that are directly passed to PHP's include or require functions without proper sanitization or validation. This creates a classic local file inclusion vulnerability where attackers can manipulate the include statement to load arbitrary local files or potentially remote files if the php.ini configuration permits remote file inclusion. The vulnerability manifests through the theme's handling of file paths, where user-controllable variables are used to construct file inclusion paths without adequate input validation or whitelisting mechanisms. This flaw directly maps to CWE-98, which describes improper control of code generation and execution, and aligns with ATT&CK technique T1190 for exploiting remote services through code injection.
The operational impact of this vulnerability is severe and multifaceted, as it provides attackers with a pathway to execute arbitrary code on vulnerable WordPress installations. An attacker can leverage this vulnerability to upload malicious files, establish backdoors, escalate privileges, or completely compromise the affected system. The vulnerability affects not only individual websites but can also serve as a stepping stone for broader attacks within network infrastructures, particularly when WordPress installations are part of larger enterprise environments. The risk is amplified by the fact that this vulnerability affects a widely used WordPress theme, making it an attractive target for automated exploitation campaigns and increasing the potential attack surface across multiple organizations.
Mitigation strategies for this vulnerability should focus on immediate remediation through theme updates to versions that address the include statement handling. Organizations must ensure that all affected installations are updated to the latest stable version of the Le Truffe theme, as the vendor has likely released patches to address the improper file inclusion handling. Additionally, implementing proper input validation and sanitization measures, such as whitelisting acceptable file paths, can prevent exploitation attempts. Network-level protections should include monitoring for suspicious include patterns and implementing web application firewalls that can detect and block malicious file inclusion attempts. Security hardening practices should also enforce proper php.ini configurations that disable remote file inclusion and implement strict file access controls to minimize the impact of potential exploitation attempts.