CVE-2025-69059

Executive Summary

CVE-2025-69059 is a critical PHP Local File Inclusion (LFI) vulnerability affecting the DiveIt WordPress theme by AncoraThemes, up to and including version 1.4.3. The vulnerability stems from improper control of a filename used in a PHP include or require statement, allowing an unauthenticated attacker to include arbitrary local files from the server. This can lead to sensitive information disclosure, such as reading /etc/passwd, configuration files, or WordPress wp-config.php containing database credentials. The CVSS score of 8.1 (High) reflects the ease of exploitation (no authentication required, network-based) and the high impact on confidentiality. No public proof-of-concept (PoC) or exploit code has been released at this time, but the vulnerability is trivially exploitable via crafted HTTP requests.

Supply Chain & Package Security

This vulnerability is specific to the WordPress ecosystem as a theme component. The DiveIt theme is distributed via the WordPress theme repository and third-party marketplaces. Users who have installed this theme from any source are at risk. Since the vendor has not provided a patch, the supply chain risk is elevated; users must manually remove or replace the theme. No known malicious packages have been injected, but the lack of a patch increases the window of opportunity for attackers.

CVSS Breakdown & Threat Level

• CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
• Base Score: 8.1 (High)
• Attack Vector: Network (AV:N) – Exploitable remotely.
• Attack Complexity: Low (AC:L) – No special conditions required.
• Privileges Required: None (PR:N) – Unauthenticated.
• User Interaction: None (UI:N) – No victim action needed.
• Scope: Unchanged (S:U) – Affects only the vulnerable component.
• Confidentiality: High (C:H) – Full file read capability.
• Integrity: None (I:N) – No file modification.
• Availability: None (A:N) – No denial of service.

Threat Level: High. The vulnerability is easy to exploit and can expose sensitive server data, including database credentials, API keys, and source code.

Deep Dive & Mechanics

The vulnerability resides in the DiveIt theme's PHP code, likely in a template or plugin file that uses a user-supplied parameter (e.g., page, file, or template) directly in a PHP include() or require() statement without proper sanitization or path validation. For example, a vulnerable snippet might look like:

$page = $_GET['page'];
include($page . '.php');

An attacker can manipulate the page parameter to traverse directories and include arbitrary files:

GET /?page=../../../etc/passwd%00

The null byte (%00) or path traversal sequences (../) allow the attacker to escape the intended directory. Since the theme is a WordPress component, the attack surface is the WordPress frontend, and no authentication is required.

WordPress Context: The DiveIt theme is a WordPress theme, so the vulnerability is triggered via WordPress's URL routing. The attacker does not need to be logged in. The theme's PHP files are executed within the WordPress environment, meaning the attacker can read any file the web server user has access to, including wp-config.php.

Vulnerable vs. Patched Code

Since no patch is available, we can only describe the vulnerable pattern. A secure implementation would use a whitelist of allowed files or validate the path strictly.

Vulnerable Code (Example):

// diveit/includes/load-template.php
$template = $_GET['template'];
include( get_template_directory() . '/templates/' . $template . '.php' );

Patched Code (Hypothetical):

// diveit/includes/load-template.php
$allowed_templates = array('home', 'single', 'page', 'archive');
$template = $_GET['template'];
if (in_array($template, $allowed_templates)) {
    include( get_template_directory() . '/templates/' . $template . '.php' );
} else {
    // Default template or error
    include( get_template_directory() . '/templates/page.php' );
}

The patched version uses a whitelist to prevent arbitrary file inclusion.

Exploitation & Lab Setup

Red Team (Attack Simulation)

Prerequisites:

• A WordPress instance with DiveIt theme version <= 1.4.3.
• No authentication required.

Exploitation Steps:

1. Identify the vulnerable parameter: Use a web fuzzer (e.g., Burp Suite, ffuf) to find parameters like page, file, template, or include in the theme's URLs.
2. Craft the payload: Use path traversal to read sensitive files.

Example Request:

GET /?page=../../../etc/passwd HTTP/1.1
Host: target-site.com

If the theme uses a .php extension append, try null byte injection:

GET /?page=../../../etc/passwd%00 HTTP/1.1

Expected Output: The contents of /etc/passwd will be displayed in the response.

Advanced Exploitation:

• Read wp-config.php to obtain database credentials:

  GET /?page=../../../wp-config%00
  

• Use PHP wrappers (if allow_url_include is enabled) for remote file inclusion, but this is less common.

Blue Team (Defense & Detection)

Detection Steps:

1. Monitor Web Logs: Look for patterns like ../, %00, or repeated requests to the same parameter with path traversal sequences.
2. File Integrity Monitoring: Alert on unexpected reads of sensitive files (e.g., /etc/passwd, wp-config.php).
3. WAF Rules: Block requests containing ../ or %00 in query parameters.

Hunting Query (Splunk):

index=web sourcetype=access_combined
uri_query=*page=*../* OR uri_query=*%00*
| stats count by src_ip, uri

Indicators of Compromise (IOCs)

• Network IOCs:
  • HTTP requests with ../ or %00 in query parameters (e.g., ?page=../../../etc/passwd).
  • Repeated 200 OK responses for non-existent PHP files (e.g., ?page=../../../etc/passwd returns content).
• File System IOCs:
  • Unexpected access to /etc/passwd, /etc/shadow, wp-config.php, or other sensitive files.
• Log IOCs:
  • Web server logs showing path traversal patterns in the QUERY_STRING or REQUEST_URI.

Detection Engineering

YARA Rule

rule CVE_2025_69059_LFI_Detection {
    meta:
        description = "Detects attempts to exploit CVE-2025-69059 via path traversal in DiveIt theme"
        author = "Valters IT"
        date = "2025-04-10"
        reference = "CVE-2025-69059"
    strings:
        $traversal1 = "../"
        $traversal2 = "..\\"
        $nullbyte = "%00"
        $wp_config = "wp-config.php"
        $passwd = "/etc/passwd"
    condition:
        any of ($traversal*) and any of ($nullbyte, $wp_config, $passwd)
}

Sigma Rule

title: CVE-2025-69059 DiveIt Theme LFI Attempt
id: 8a4b3c2d-1e5f-4a7b-9c8d-0e1f2a3b4c5d
status: experimental
description: Detects HTTP requests attempting to exploit PHP Local File Inclusion in DiveIt WordPress theme
author: Valters IT
date: 2025-04-10
logsource:
    category: webserver
    product: apache
detection:
    selection:
        cs-uri-query|contains:
            - '../'
            - '..\\'
            - '%00'
    condition: selection
falsepositives:
    - Legitimate use of path traversal in other applications (rare)
level: high

Suricata Rule

alert http any any -> any any (msg:"CVE-2025-69059 DiveIt Theme LFI Attempt"; flow:to_server,established; content:"../"; http_uri; content:"%00"; http_uri; distance:0; sid:1000001; rev:1;)

Remediation & Mitigation

Immediate Actions:

1. Remove or Replace the Theme: Since no patch is available, deactivate and delete the DiveIt theme immediately. Switch to a secure alternative.
2. Web Application Firewall (WAF): Deploy a WAF rule to block path traversal patterns (../, %00) in query parameters.
3. File Permissions: Ensure sensitive files (e.g., wp-config.php) are not readable by the web server user if possible (e.g., move outside web root).

Long-Term Measures:

• Vendor Contact: Attempt to contact AncoraThemes for a patch. If unresponsive, consider the theme abandoned.
• Code Review: If you must keep the theme, manually audit and fix the vulnerable include() statements by implementing a whitelist.
• Monitor: Continuously monitor for exploitation attempts using the provided detection rules.

Valters IT Signature This report was generated by Valters IT DevSecOps AI. For questions, contact security@valters-it.com.