CVE-2025-14431: 
WordPress vulnerability analysis and mitigation

CVE-2025-14431 is a PHP Local File Inclusion (LFI) vulnerability in the THEMELOGI Navian WordPress theme, classified under CWE-98 (Improper Control of Filename for Include/Require Statement in PHP Program). It affects all versions of the Navian theme through and including version 1.5.4. The vulnerability was reported by Tran Nguyen Bao Khanh (VCI - VNPT Cyber Immunity) on August 16, 2025, and publicly disclosed by Patchstack on January 7–8, 2026. It carries a CVSS v3.1 base score of 8.1 (High), as assigned by Patchstack (Patchstack).

The root cause is improper sanitization and validation of user-supplied input used in PHP include/require statements within the Navian theme (CWE-98). An unauthenticated remote attacker can manipulate a filename parameter to cause the PHP interpreter to include arbitrary local files from the server's filesystem. No authentication or user interaction is required, though the attack complexity is rated High, suggesting some precondition (such as specific server configuration or path traversal constraints) must be met. No public proof-of-concept code has been identified at this time (Patchstack).

Successful exploitation allows an unauthenticated attacker to read arbitrary local files on the web server, potentially exposing sensitive data such as WordPress configuration files (wp-config.php) containing database credentials, which could lead to complete database takeover. Depending on server configuration, LFI may be chained with other techniques (e.g., log poisoning) to achieve remote code execution, resulting in full compromise of confidentiality, integrity, and availability. The scope of impact is limited to the affected system but could facilitate lateral movement if exposed credentials are reused elsewhere (Patchstack).

No public proof-of-concept exploit or evidence of active in-the-wild exploitation has been reported as of the time of disclosure. The EPSS score is approximately 0.0015 (0.15%), indicating a low current probability of exploitation. The vulnerability is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog. Patchstack notes that vulnerabilities of this class are commonly used in mass-exploit campaigns targeting WordPress sites regardless of traffic size or popularity (Patchstack).

1. Reconnaissance: Identify WordPress sites using the Navian theme (version ≤ 1.5.4) via passive techniques such as HTTP response headers, HTML source inspection, or tools like WPScan.
2. Identify vulnerable parameter: Locate the theme's PHP file(s) that accept user-controlled input passed to an include/require statement — typically via a GET or POST parameter controlling a template or file path.
3. Craft LFI payload: Construct a request with a path traversal payload (e.g., ../../../../wp-config.php or /etc/passwd) in the vulnerable parameter to reference a target local file.
4. Send malicious request: Submit the crafted HTTP request to the vulnerable WordPress endpoint without authentication.
5. Retrieve sensitive data: If successful, the server returns the contents of the included file (e.g., database credentials from wp-config.php), which can be used for further compromise such as database access or privilege escalation (Patchstack).

• Network: Unusual HTTP GET/POST requests to WordPress theme endpoints containing path traversal sequences (e.g., ../, ..%2F, %2e%2e%2f) in parameters; requests returning unexpected file content (e.g., PHP config syntax in responses).
• Logs: Web server access logs showing requests with encoded or plaintext path traversal strings targeting Navian theme files; repeated 200 responses to atypical theme file paths from a single IP.
• File System: Unexpected access timestamps on sensitive files such as wp-config.php, /etc/passwd, or server log files coinciding with suspicious web requests.
• Process: PHP processes reading files outside the WordPress web root or theme directory, observable via system audit logs (e.g., auditd on Linux).

As of the disclosure date, no official patch from THEMELOGI is available for the Navian theme. Patchstack has issued a virtual patching/mitigation rule for Patchstack-protected sites to block exploitation attempts until an official fix is released. Recommended immediate actions include: (1) disabling or removing the Navian theme if not essential; (2) deploying a Web Application Firewall (WAF) with rules to detect and block path traversal and LFI patterns; (3) restricting network-level access to the WordPress admin and theme endpoints where possible; and (4) monitoring web server access logs for suspicious file inclusion attempts. Site owners should contact THEMELOGI directly for patch availability updates (Patchstack).

Wordfence included CVE-2025-14431 in its weekly WordPress vulnerability report for January 5–11, 2026, highlighting it among notable disclosures for that period (Wordfence Blog). The vulnerability was also noted on Mastodon by The Hacker Wire shortly after disclosure. No significant vendor statements from THEMELOGI or broader media coverage have been identified beyond standard vulnerability database entries.