CVE-2026-28069: 
WordPress vulnerability analysis and mitigation

CVE-2026-28069 is a PHP Local File Inclusion (LFI) vulnerability in the ThemeREX Le Truffe WordPress theme, classified under CWE-98 (Improper Control of Filename for Include/Require Statement in PHP Program). It affects all versions of the Le Truffe theme up to and including version 1.1.7, and was reported by researcher "Bonds" on September 14, 2025, with public disclosure on February 27, 2026. The vulnerability carries a CVSS v3.1 base score of 8.1 (High), exploitable remotely without authentication (Patchstack).

The root cause is improper control of filename parameters passed to PHP include/require statements within the Le Truffe theme (CWE-98), allowing an attacker to manipulate the filename argument to point to arbitrary local files on the server. Exploitation requires no authentication and no user interaction, but is rated High complexity, suggesting some precondition or non-trivial crafting of the request is needed. The attack vector is network-based, and the vulnerability is mapped to CAPEC-193 (PHP Remote File Inclusion), though the actual exploitation path is Local File Inclusion (Patchstack). No public proof-of-concept code has been identified at this time.

Successful exploitation allows an unauthenticated remote attacker to include and execute arbitrary local files on the web server, potentially exposing sensitive files such as WordPress configuration files (e.g., wp-config.php) containing database credentials. This can lead to full database compromise, unauthorized access to sensitive data, and potentially remote code execution if attacker-controlled content can be included. The vulnerability has high impact on confidentiality, integrity, and availability (Patchstack).

As of the time of disclosure, there is no public proof-of-concept exploit and no confirmed evidence of in-the-wild exploitation (Patchstack). The EPSS score is approximately 0.053%, indicating a low current probability of exploitation in the near term. The CVE is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog. Patchstack notes that vulnerabilities of this class and severity are frequently used in mass-exploit campaigns targeting WordPress sites at scale.

1. Reconnaissance: Identify WordPress sites using the Le Truffe theme (version ≤ 1.1.7) via passive scanning tools (e.g., 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 the endpoint or parameter that is passed unsanitized to a PHP include/require statement.
3. Craft LFI payload: Construct an HTTP request with a manipulated filename parameter pointing to a sensitive local file, such as ../../../../wp-config.php or /etc/passwd, using path traversal sequences.
4. Send request: Submit the crafted request to the vulnerable endpoint on the target WordPress installation without requiring any authentication.
5. Extract sensitive data: Review the server's response for the contents of the included file, which may contain database credentials, API keys, or other sensitive configuration data enabling further compromise (Patchstack).

• Network: Unusual HTTP GET or POST requests to WordPress theme endpoints containing path traversal sequences (e.g., ../, ..%2F, %2e%2e%2f) in query parameters or POST body fields.
• Logs: Web server access logs showing requests with encoded path traversal patterns targeting theme-related PHP files; HTTP 200 responses to requests containing wp-config, passwd, or other sensitive file names in parameters.
• File System: Unexpected access timestamps on sensitive files such as wp-config.php or system files like /etc/passwd that correlate with suspicious web requests.
• Process: PHP processes spawning unexpected child processes or making outbound network connections following suspicious include operations.

No official patch from ThemeREX is currently available for the Le Truffe theme (Patchstack). Recommended actions include: (1) Deactivate and remove the Le Truffe theme until a patched version is released; (2) Deploy a Web Application Firewall (WAF) — Patchstack has issued a virtual patch/mitigation rule to block exploitation attempts; (3) Implement strict server-side input validation and sanitization for all filename parameters used in PHP include/require statements; (4) Restrict file system permissions to limit the files accessible by the web server process.

Patchstack, which assigned and disclosed the CVE, has classified this as a high-priority vulnerability and issued a virtual mitigation rule for its users pending an official patch. Wordfence included this vulnerability in its weekly WordPress vulnerability intelligence report for the period of February 23 – March 1, 2026, indicating broader community awareness within the WordPress security ecosystem (Wordfence).