CVE-2026-22344 identifies a Local File Inclusion (LFI) vulnerability in the Mikado-Themes FiveStar WordPress theme, specifically due to improper control over filenames used in PHP include or require statements. This vulnerability arises when user-supplied input is not properly sanitized or validated before being used in file inclusion functions, allowing an attacker to manipulate the filename parameter to include arbitrary files from the server's filesystem. The affected product is the FiveStar theme, versions up to and including 1.7. The vulnerability does not have a CVSS score assigned yet, but it was published on February 20, 2026. Exploitation of this vulnerability can lead to disclosure of sensitive files such as configuration files, password files, or other critical data stored on the server. In some cases, LFI can be leveraged to execute arbitrary code if combined with other vulnerabilities or if the attacker can upload malicious files. The vulnerability requires the theme to be installed and active on a WordPress site, and the attacker must be able to send crafted HTTP requests targeting the vulnerable PHP scripts. No known public exploits or patches are currently available, increasing the urgency for users to monitor for updates or apply manual mitigations. This vulnerability is particularly concerning because WordPress themes are widely used, and many sites may not regularly update or audit their themes, leaving them exposed to such attacks.

The impact of CVE-2026-22344 is significant for organizations running WordPress sites with the Mikado-Themes FiveStar theme. Successful exploitation can lead to unauthorized disclosure of sensitive server files, including configuration files, credentials, or other private data, compromising confidentiality. Additionally, attackers might leverage the LFI vulnerability to execute arbitrary code or pivot to further attacks, affecting integrity and availability of the affected systems. This can result in website defacement, data breaches, or complete server takeover. For organizations relying on WordPress for critical business functions, this vulnerability poses a risk of operational disruption and reputational damage. The lack of a patch or public exploit means defenders must act proactively to mitigate risk. Given the widespread use of WordPress globally, the threat surface is large, particularly for websites that do not maintain strict update and security practices.

To mitigate CVE-2026-22344, organizations should first verify if they are using the Mikado-Themes FiveStar theme version 1.7 or earlier and plan to update to a patched version once available. In the absence of an official patch, administrators should consider temporarily disabling or replacing the vulnerable theme to prevent exploitation. Implementing Web Application Firewalls (WAFs) with rules to detect and block suspicious file inclusion attempts can reduce exposure. Additionally, restricting PHP file inclusion paths via configuration (e.g., open_basedir restrictions) can limit the ability of attackers to include arbitrary files. Regularly auditing web server logs for unusual requests targeting include or require parameters can help detect exploitation attempts early. Employing the principle of least privilege on the web server file system can minimize the impact if an attacker gains access. Finally, educating site administrators on secure theme management and timely updates is critical to long-term risk reduction.