CVE-2025-69399: 
WordPress vulnerability analysis and mitigation

CVE-2025-69399 is a PHP Local File Inclusion (LFI) vulnerability in the ThemeREX Cobble WordPress theme, caused by improper control of filename parameters in PHP include/require statements. It affects Cobble versions from n/a through 1.7 and was published on February 20, 2026. The vulnerability carries a CVSS v3.1 base score of 8.1 (High), exploitable remotely without authentication but with high attack complexity (Feedly).

The root cause is classified as CWE-98 (Improper Control of Filename for Include/Require Statement in PHP Program), which allows an attacker to manipulate filename parameters passed to PHP include or require statements. By supplying a crafted path, an unauthenticated remote attacker can cause the application to include arbitrary local files from the server's filesystem. The high attack complexity rating suggests that exploitation may require specific conditions or configurations to be met, such as knowledge of file paths or particular server configurations (Feedly).

Successful exploitation allows an attacker to read sensitive local files (e.g., configuration files containing credentials, /etc/passwd), and potentially execute arbitrary code if attacker-controlled content can be included. The vulnerability has high confidentiality, integrity, and availability impact, meaning a fully compromised web application and potentially the underlying server are realistic outcomes. Lateral movement within the hosting environment is possible if credentials or secrets are exposed through file disclosure (Feedly).

As of the available data, there is no public proof-of-concept exploit and no evidence of active in-the-wild exploitation. The EPSS score is approximately 0.053%, indicating a low current probability of exploitation. The vulnerability is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog. Patch availability from ThemeREX has not been confirmed in public advisories (Feedly).

1. Reconnaissance: Identify WordPress sites using the ThemeREX Cobble theme version 1.7 or earlier using tools like WPScan, Shodan, or manual inspection of theme metadata.
2. Identify vulnerable parameter: Locate the theme's PHP code paths that accept user-controlled filename input passed to include() or require() statements — typically via GET/POST parameters or URL path segments.
3. Craft LFI payload: Construct a request with a path traversal payload (e.g., ../../../../etc/passwd or ../../../../wp-config.php) targeting the vulnerable parameter to read sensitive local files.
4. Escalate access: If the server is configured to allow inclusion of uploaded files (e.g., images with embedded PHP), attempt to include a previously uploaded malicious file to achieve remote code execution.
5. Exfiltrate or persist: Use file read access to extract credentials from wp-config.php or other configuration files, then leverage those credentials for further access to the WordPress admin panel or database (Feedly).

• Network: Unusual HTTP GET or POST requests to theme-related endpoints containing path traversal sequences (e.g., ../, ..%2F, %2e%2e%2f) in filename or path parameters.
• Logs: WordPress or web server access logs showing requests with encoded traversal strings targeting Cobble theme files; repeated 200 responses to requests with suspicious file path parameters.
• File System: Unexpected access to sensitive files such as wp-config.php, /etc/passwd, or server configuration files by the web server process.
• Process: PHP processes reading files outside the web root or WordPress installation directory (Feedly).

Users should upgrade the ThemeREX Cobble theme to a version newer than 1.7 as soon as a patched release becomes available — check ThemeREX's official advisories and the WordPress plugin/theme repository for updates. As interim mitigations: ensure allow_url_include is set to Off in php.ini to prevent remote file inclusion; implement strict input validation and sanitization on all filename parameters; apply web application firewall (WAF) rules to block path traversal patterns; and restrict network-level access to the WordPress installation where feasible (Feedly, Wordfence).

Wordfence included CVE-2025-69399 in their weekly WordPress vulnerability report for the period of February 9–15, 2026, flagging it as a notable theme-level LFI issue. No significant broader media coverage or notable researcher commentary beyond standard vulnerability tracking has been identified for this CVE (Wordfence).