CVE-2026-22392: 
WordPress vulnerability analysis and mitigation

CVE-2026-22392 is a PHP Local File Inclusion (LFI) vulnerability in the Mikado-Themes Cortex WordPress theme, classified under CWE-98 (Improper Control of Filename for Include/Require Statement in PHP Program). It affects Cortex versions from the initial release through version 1.9 (with some sources citing through version 1.5). The vulnerability was published on March 5, 2026, and assigned by Patchstack. It carries a CVSS v3.1 base score of 8.1 (High) (Feedly, Patchstack).

The root cause is improper control of filename parameters used in PHP include/require statements within the Cortex theme (CWE-98), allowing an attacker to manipulate file path inputs to include arbitrary local files on the server. The attack vector is network-based, requires no authentication or user interaction, but does require high attack complexity — meaning specific conditions or non-default configurations must be present for exploitation. The vulnerability is categorized under CAPEC-193 (PHP Remote File Inclusion) but manifests as local file inclusion in practice, enabling attackers to read or execute files already present on the server's filesystem (Feedly, Patchstack).

Successful exploitation could allow an unauthenticated remote attacker to include and execute arbitrary local files on the web server, leading to unauthorized disclosure of sensitive data (e.g., configuration files, credentials), modification of application behavior (integrity compromise), and potential denial of service through resource exhaustion. All three security pillars — confidentiality, integrity, and availability — are rated as high impact. Depending on server configuration, exploitation could facilitate lateral movement or privilege escalation if sensitive credentials or tokens are exposed via included files (Feedly).

There is currently no public proof-of-concept exploit code and no evidence of in-the-wild exploitation as of the time of reporting. The EPSS score is approximately 0.053%, indicating a low probability of exploitation in the near term. The vulnerability is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog. No threat actor attribution has been reported (Feedly).

1. Reconnaissance: Identify WordPress sites using the Mikado-Themes Cortex theme at versions ≤ 1.9 using tools like WPScan, Shodan, or by inspecting theme metadata in publicly accessible style.css files.
2. Identify vulnerable parameter: Analyze the theme's PHP source code or observed HTTP requests to locate parameters that are passed unsanitized to PHP include() or require() statements.
3. Craft malicious request: Construct an HTTP request that supplies a manipulated filename value (e.g., using path traversal sequences such as ../../) pointing to a sensitive local file (e.g., /etc/passwd, wp-config.php).
4. Trigger file inclusion: Submit the crafted request to the vulnerable endpoint; if conditions are met, the server will include and potentially execute or return the contents of the targeted local file.
5. Escalate access: Use exposed credentials (e.g., database credentials from wp-config.php) or session tokens to escalate privileges, access the database, or pivot to other systems (Feedly, Patchstack).

• Network: Unusual HTTP GET or POST requests to WordPress theme endpoints containing path traversal sequences (e.g., ../, ..%2F, %2e%2e%2f) or references to sensitive files (wp-config, passwd, shadow) in parameter values.
• Logs: WordPress or web server access logs (Apache/Nginx) showing requests with suspicious filename parameters to Cortex theme PHP files; PHP error logs indicating failed or successful file inclusion of unexpected paths.
• File System: Unexpected access timestamps on sensitive files such as wp-config.php, /etc/passwd, or other system files that should not be read by the web process.
• Process: PHP processes reading files outside the WordPress installation directory, particularly system files or files belonging to other users on shared hosting environments.

Update the Mikado-Themes Cortex WordPress theme to a version newer than 1.9 (or 1.5 per some sources) as soon as a patched release is available from the vendor. As interim mitigations, implement strict input validation and sanitization on all user-supplied inputs that influence file inclusion operations, and set allow_url_include = Off and allow_url_fopen = Off in php.ini to reduce the attack surface. Deploying a Web Application Firewall (WAF) with rules targeting path traversal and file inclusion patterns can help detect and block exploitation attempts (Feedly, Patchstack).

The vulnerability was reported by Wordfence in their weekly WordPress vulnerability report covering the period of February 23 to March 1, 2026, and was also catalogued by VulDB shortly after disclosure. Coverage has been limited to routine vulnerability tracking outlets, with no significant researcher commentary or broader media attention noted (Wordfence).