EUVD-2025-11616

Comprehensive Technical Analysis of EUVD-2025-11616

1. Vulnerability Assessment and Severity Evaluation

The vulnerability EUVD-2025-11616 pertains to an "Unrestricted Upload of File with Dangerous Type" in the Theme File Duplicator plugin, specifically affecting versions from n/a through 1.3. This vulnerability allows attackers to upload malicious files, potentially leading to arbitrary code execution, data breaches, and system compromise.

Severity Evaluation:

• Base Score: 9.9 (Critical)
• Base Score Version: 3.1
• Base Score Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

The CVSS score of 9.9 indicates a critical vulnerability due to the following factors:

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

This high score underscores the severe impact and ease of exploitation, making it a top priority for immediate remediation.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Remote Exploitation: Attackers can exploit this vulnerability over the network without requiring physical access to the system.
• Low Complexity: The attack requires minimal technical skill and resources.
• Low Privileges: Attackers need only low-level privileges to exploit the vulnerability.

Exploitation Methods:

• Malicious File Upload: Attackers can upload files with dangerous types (e.g., PHP, executable scripts) that can execute arbitrary code on the server.
• Web Shell Upload: Attackers can upload web shells to gain persistent access and control over the server.
• Data Exfiltration: Malicious files can be used to exfiltrate sensitive data from the server.

3. Affected Systems and Software Versions

Affected Software:

• Theme File Duplicator Plugin: Versions from n/a through 1.3

Affected Systems:

• WordPress Websites: Any WordPress installation using the affected versions of the Theme File Duplicator plugin.
• Web Servers: Servers hosting WordPress sites with the vulnerable plugin installed.

4. Recommended Mitigation Strategies

Immediate Actions:

• Update/Patch: Immediately update the Theme File Duplicator plugin to a version that addresses this vulnerability.
• Disable Plugin: If an update is not available, disable the plugin until a secure version is released.
• File Upload Restrictions: Implement strict file upload policies to restrict dangerous file types.

Long-Term Mitigations:

• Regular Audits: Conduct regular security audits and vulnerability assessments.
• Intrusion Detection: Deploy intrusion detection systems (IDS) to monitor for suspicious activities.
• Access Controls: Enforce strict access controls and least privilege principles.
• Backup and Recovery: Ensure regular backups and have a recovery plan in place.

5. Impact on European Cybersecurity Landscape

The vulnerability poses a significant risk to the European cybersecurity landscape, particularly for organizations and individuals using WordPress with the affected plugin. The potential for widespread exploitation could lead to:

• Data Breaches: Compromise of sensitive data, including personal information and intellectual property.
• Service Disruptions: Unavailability of critical services due to server compromise.
• Reputation Damage: Loss of trust and reputation for affected organizations.

6. Technical Details for Security Professionals

Vulnerability Details:

• CVE ID: CVE-2025-27282
• Assigner: Patchstack
• EPSS: N/A
• ENISA ID Product: Theme File Duplicator (versions n/a ≤1.3)
• ENISA ID Vendor: rockgod100

Technical Recommendations:

• Code Review: Conduct a thorough code review of the Theme File Duplicator plugin to identify and fix the vulnerability.
• Input Validation: Implement robust input validation to prevent the upload of dangerous file types.
• Security Headers: Use security headers to mitigate the risk of file upload vulnerabilities.
• Monitoring: Continuously monitor for any unusual file upload activities and investigate promptly.

References:

• Patchstack Vulnerability Database

By addressing this vulnerability promptly and comprehensively, organizations can significantly reduce the risk of exploitation and protect their digital assets.