CVE-2026-22410 is a vulnerability identified in the Mikado-Themes Dolcino WordPress theme, specifically affecting versions up to and including 1.6. The issue arises from improper control over the filename used in PHP include or require statements, which leads to a Local File Inclusion (LFI) vulnerability. LFI vulnerabilities occur when an application allows user input to influence file paths without adequate validation, enabling attackers to include files from the local server. This can result in disclosure of sensitive files such as configuration files, password files, or application source code. In some scenarios, LFI can be leveraged to execute arbitrary code, especially if combined with other vulnerabilities or misconfigurations. The vulnerability was reserved in early 2026 and published in March 2026, with no CVSS score assigned yet and no known exploits in the wild. The affected product is a PHP-based theme used in WordPress environments, which are widely deployed globally. The lack of patch links suggests that a fix may not yet be publicly available, increasing the urgency for users to monitor vendor updates. The vulnerability's root cause is insufficient sanitization or validation of input controlling the include/require filename, a common PHP security pitfall. Attackers exploiting this flaw can potentially read sensitive files or escalate attacks on the affected web server.

The primary impact of CVE-2026-22410 is unauthorized disclosure of sensitive information through local file inclusion, which can compromise confidentiality. Attackers may access configuration files containing database credentials, user data, or other secrets. In some cases, LFI can be chained with other vulnerabilities to achieve remote code execution, threatening integrity and availability. Organizations running websites with the vulnerable Dolcino theme risk data breaches, defacement, or server takeover. This can lead to loss of customer trust, regulatory penalties, and operational disruption. The widespread use of PHP and WordPress themes means a large attack surface, especially for small and medium businesses that may not have robust security practices. The absence of known exploits currently reduces immediate risk but also means attackers may develop exploits soon after public disclosure. The impact is heightened in environments where the web server has elevated privileges or where sensitive data is stored on the same server. Overall, the threat poses a significant risk to confidentiality and potentially integrity and availability if exploited.

To mitigate CVE-2026-22410, organizations should first monitor Mikado-Themes vendor communications for official patches and apply them promptly once available. In the interim, restrict file inclusion paths by configuring PHP settings such as open_basedir to limit accessible directories. Implement strict input validation and sanitization on all parameters influencing file paths, ensuring only expected filenames or whitelisted values are accepted. Employ Web Application Firewalls (WAFs) to detect and block suspicious requests attempting file inclusion attacks. Conduct code reviews and penetration testing focused on file inclusion vulnerabilities in custom themes or plugins. Isolate web servers and minimize privileges of the web server user to limit damage from potential exploitation. Regularly back up website data and configurations to enable recovery in case of compromise. Educate development teams on secure coding practices related to file handling in PHP. Finally, consider replacing vulnerable themes with actively maintained alternatives if patches are delayed.