CVE-2026-28024 is a Local File Inclusion (LFI) vulnerability found in the axiomthemes Helion WordPress theme, affecting versions up to 1.1.12. The vulnerability arises from improper validation or sanitization of user-supplied input used in PHP include or require statements. This flaw allows an attacker to manipulate the filename parameter, causing the application to include unintended files from the local filesystem. Such an inclusion can lead to arbitrary code execution, information disclosure, or even full system compromise depending on the server configuration and available files. The vulnerability does not require authentication or user interaction, making it easier for remote attackers to exploit by sending crafted HTTP requests. Although no public exploits are currently known, the nature of LFI vulnerabilities typically makes them attractive targets for attackers seeking to escalate privileges or pivot within compromised environments. The absence of a CVSS score means severity must be inferred from the vulnerability's characteristics: it impacts confidentiality, integrity, and potentially availability, with a relatively straightforward exploitation path. The vulnerability affects a widely used WordPress theme, which is popular among small to medium-sized websites, increasing the attack surface globally. No official patches or mitigation links are provided yet, indicating that users should monitor vendor updates closely or apply temporary mitigations.

The impact of CVE-2026-28024 can be severe for organizations using the Helion theme. Successful exploitation can lead to unauthorized disclosure of sensitive files, including configuration files, credentials, or source code. Attackers may also execute arbitrary PHP code, potentially gaining full control over the web server and pivoting to internal networks. This can result in data breaches, defacement, service disruption, or use of the compromised server as a launchpad for further attacks. The vulnerability affects the confidentiality, integrity, and availability of affected systems. Given the popularity of WordPress and the Helion theme, a large number of websites globally could be at risk, including corporate, governmental, and personal sites. The lack of authentication requirement and ease of exploitation increase the threat level. Organizations with sensitive data or critical web infrastructure face heightened risk of reputational damage, financial loss, and regulatory penalties if exploited.

1. Immediately update the Helion theme to a patched version once released by axiomthemes. Monitor official channels for security updates. 2. If no patch is available, implement web application firewall (WAF) rules to detect and block suspicious requests containing directory traversal or file inclusion patterns targeting the vulnerable parameters. 3. Restrict PHP include paths using open_basedir or disable allow_url_include in PHP configuration to limit file inclusion scope. 4. Conduct a thorough code review of the theme to identify and sanitize all user inputs used in include/require statements, applying strict validation and whitelisting. 5. Employ runtime application self-protection (RASP) tools to detect and prevent exploitation attempts in real time. 6. Regularly audit web server logs for anomalous access patterns indicative of LFI exploitation attempts. 7. Isolate critical web applications and limit permissions of the web server user to minimize impact if exploited. 8. Educate development and security teams about secure coding practices related to file inclusion vulnerabilities.