EUVD-2025-7408

Comprehensive Technical Analysis of EUVD-2025-7408

1. Vulnerability Assessment and Severity Evaluation

The vulnerability in question, identified as EUVD-2025-7408, pertains to a Local File Inclusion (LFI) flaw in the HUSKY – Products Filter Professional for WooCommerce plugin for WordPress. This vulnerability affects all versions up to and including 1.3.6.5. The flaw is located in the 'template' parameter of the woof_text_search AJAX action, which allows unauthenticated attackers to include and execute arbitrary files on the server.

Severity Evaluation:

• CVSS Base Score: 9.8
• CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

The high CVSS score of 9.8 indicates a critical vulnerability. The key factors contributing to this score are:

• Attack Vector (AV): Network (N)
• Attack Complexity (AC): Low (L)
• Privileges Required (PR): None (N)
• User Interaction (UI): None (N)
• Scope (S): Unchanged (U)
• Confidentiality (C): High (H)
• Integrity (I): High (H)
• Availability (A): High (H)

This vulnerability poses a significant risk due to its ease of exploitation and the potential for severe impact on confidentiality, integrity, and availability.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Unauthenticated Access: The vulnerability can be exploited without any authentication, making it accessible to any attacker with network access.
• AJAX Action: The woof_text_search AJAX action is the entry point for the attack, specifically through the 'template' parameter.

Exploitation Methods:

• File Inclusion: An attacker can manipulate the 'template' parameter to include arbitrary files from the server.
• Code Execution: If the included file contains PHP code, it will be executed, leading to potential code execution.
• Data Exfiltration: Attackers can include sensitive files such as configuration files, logs, or other data files to exfiltrate sensitive information.

3. Affected Systems and Software Versions

Affected Systems:

• WordPress installations using the HUSKY – Products Filter Professional for WooCommerce plugin.

Affected Software Versions:

• All versions of the HUSKY – Products Filter Professional for WooCommerce plugin up to and including 1.3.6.5.

4. Recommended Mitigation Strategies

Immediate Actions:

• Update the Plugin: Ensure that the plugin is updated to a version higher than 1.3.6.5, where the vulnerability has been patched.
• Disable the Plugin: If an update is not immediately available, consider disabling the plugin until a secure version is released.

Long-Term Mitigation:

• Regular Updates: Implement a regular update schedule for all plugins and themes to ensure they are patched against known vulnerabilities.
• Access Controls: Restrict access to the AJAX actions to authenticated users only, if possible.
• Monitoring: Implement monitoring and logging to detect any suspicious activities related to AJAX actions and file inclusions.
• Web Application Firewall (WAF): Deploy a WAF to filter out malicious requests targeting known vulnerabilities.

5. Impact on European Cybersecurity Landscape

The vulnerability poses a significant risk to the European cybersecurity landscape, particularly for e-commerce websites using WordPress and WooCommerce. The potential for unauthenticated attackers to execute arbitrary code and exfiltrate sensitive data can lead to severe breaches, financial losses, and reputational damage. Given the widespread use of WordPress and WooCommerce in Europe, this vulnerability underscores the importance of timely updates and robust security practices.

6. Technical Details for Security Professionals

Vulnerability Details:

• Vulnerable Parameter: 'template' in the woof_text_search AJAX action.
• Exploitation Path: An attacker can send a crafted AJAX request to the woof_text_search action with a manipulated 'template' parameter to include and execute arbitrary files.

Example Exploit:

POST /wp-admin/admin-ajax.php HTTP/1.1
Host: vulnerable-site.com
Content-Type: application/x-www-form-urlencoded

action=woof_text_search&template=../../../../../../etc/passwd

Detection and Response:

• Log Analysis: Monitor logs for unusual AJAX requests, particularly those targeting the woof_text_search action.
• Intrusion Detection Systems (IDS): Configure IDS to detect and alert on suspicious file inclusion attempts.
• Incident Response: Have an incident response plan in place to quickly address any detected exploitation attempts.

References:

• Wordfence Threat Intelligence
• WordPress Plugin Repository
• Changeset Details

By addressing this vulnerability promptly and implementing robust security measures, organizations can mitigate the risk and protect their digital assets effectively.