CVE-2026-22395 is a Local File Inclusion (LFI) vulnerability found in the Mikado-Themes Fiorello WordPress theme, specifically in versions up to 1.0. The vulnerability arises from improper control over the filename parameter used in PHP include or require statements. This flaw allows an attacker to manipulate the input that determines which file is included by the PHP script, enabling them to include arbitrary files from the local filesystem. Such an attack can lead to disclosure of sensitive files (e.g., configuration files, password files), execution of arbitrary PHP code if the attacker can upload files, or further exploitation of the server environment. The vulnerability is classified as a PHP Remote File Inclusion type but is effectively a Local File Inclusion due to the nature of the flaw. No CVSS score has been assigned yet, and no public exploits have been reported. The vulnerability was reserved in early January 2026 and published in March 2026. The lack of official patches or mitigation guidance from the vendor increases the urgency for organizations to implement protective measures. This vulnerability is particularly dangerous because it can be exploited remotely without authentication if the vulnerable parameter is exposed to user input, and it can compromise the confidentiality, integrity, and availability of affected systems.

The impact of CVE-2026-22395 on organizations worldwide can be severe. Exploitation of this LFI vulnerability can lead to unauthorized disclosure of sensitive information such as database credentials, configuration files, or user data, compromising confidentiality. Attackers may also achieve remote code execution by including malicious files, threatening system integrity and availability. This can result in website defacement, data breaches, or the server being used as a pivot point for further attacks within an organization's network. Organizations relying on the Fiorello theme for business-critical websites or e-commerce platforms face reputational damage, financial loss, and regulatory penalties if exploited. The absence of patches increases the window of exposure, and automated scanning tools may soon detect vulnerable installations, increasing exploitation risk. The threat is particularly acute for organizations with limited security monitoring or those that do not regularly update WordPress themes and plugins.

To mitigate CVE-2026-22395, organizations should first identify all WordPress installations using the Mikado-Themes Fiorello theme, especially versions up to 1.0. Until an official patch is released, implement the following specific measures: 1) Restrict access to vulnerable parameters by applying web application firewall (WAF) rules that block suspicious input patterns attempting to manipulate include paths; 2) Disable PHP functions like include(), require(), include_once(), and require_once() from processing user-controlled input by sanitizing and validating all inputs rigorously; 3) Employ PHP configuration directives such as open_basedir to restrict file system access to only necessary directories; 4) Use security plugins that detect and block LFI attempts; 5) Monitor web server logs for unusual requests targeting include parameters; 6) Isolate the web server environment using containerization or sandboxing to limit the impact of potential exploitation; 7) Regularly back up website data and configurations to enable rapid recovery; and 8) Engage with the theme vendor or community to track patch releases and apply updates promptly once available. Avoid exposing administrative or theme configuration interfaces to untrusted users.