EUVD-2025-4592

Comprehensive Technical Analysis of EUVD-2025-4592

1. Vulnerability Assessment and Severity Evaluation

The vulnerability in the Brizy – Page Builder plugin for WordPress, identified as EUVD-2025-4592 (CVE-2024-10960), is classified as an arbitrary file upload vulnerability. This issue arises due to the lack of file type validation in the 'storeUploads' function, affecting all versions up to and including 2.6.4. The severity of this vulnerability is rated with a CVSS Base Score of 9.9, which is considered critical.

CVSS Vector Breakdown:

• AV:N (Network Vector): The vulnerability is exploitable over the network.
• AC:L (Low Complexity): The attack requires low skill or resources.
• PR:L (Low Privileges Required): The attacker needs Contributor-level access or higher.
• UI:N (No User Interaction): No user interaction is required for the attack to succeed.
• S:C (Changed Scope): The vulnerability can affect resources beyond the security scope managed by the security authority.
• C:H (High Confidentiality Impact): There is a high impact on the confidentiality of the system.
• I:H (High Integrity Impact): There is a high impact on the integrity of the system.
• A:H (High Availability Impact): There is a high impact on the availability of the system.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Authenticated Attackers: Attackers with Contributor-level access or higher can exploit this vulnerability.
• Arbitrary File Uploads: The lack of file type validation allows attackers to upload malicious files, such as PHP scripts, which can be executed on the server.

Exploitation Methods:

• Remote Code Execution (RCE): By uploading a malicious PHP file, attackers can execute arbitrary code on the server, leading to full control over the affected WordPress site.
• Persistent Backdoors: Attackers can upload backdoor scripts that provide persistent access to the server.
• Data Exfiltration: Malicious scripts can be used to exfiltrate sensitive data from the server.

3. Affected Systems and Software Versions

Affected Software:

• Brizy – Page Builder plugin for WordPress

Affected Versions:

• All versions up to and including 2.6.4

Vendor:

• themefusecom

4. Recommended Mitigation Strategies

Immediate Actions:

• Update the Plugin: Upgrade to the latest version of the Brizy – Page Builder plugin (2.6.5 or higher) which includes the necessary security patches.
• Temporary Disable: If an immediate update is not possible, temporarily disable the plugin until it can be updated.

Long-Term Mitigations:

• Regular Audits: Conduct regular security audits of all installed plugins and themes.
• Least Privilege Principle: Ensure that users are granted the minimum level of access necessary for their roles.
• File Upload Validation: Implement additional server-side file upload validation to prevent unauthorized file types from being uploaded.
• Web Application Firewall (WAF): Deploy a WAF to monitor and block suspicious activities.

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 Brizy – Page Builder plugin. Given the widespread use of WordPress, this vulnerability could lead to widespread compromises, including data breaches, website defacements, and unauthorized access to sensitive information.

Regulatory Implications:

• GDPR Compliance: Organizations must ensure that they comply with GDPR regulations by protecting personal data. A breach due to this vulnerability could result in regulatory fines and legal actions.
• Cybersecurity Awareness: Increased awareness and training programs for users and administrators to recognize and mitigate such vulnerabilities.

6. Technical Details for Security Professionals

Vulnerability Details:

• Function Affected: 'storeUploads'
• Issue: Missing file type validation
• Impact: Arbitrary file uploads leading to potential RCE

Detection and Monitoring:

• Log Analysis: Monitor server logs for unusual file upload activities.
• File Integrity Monitoring: Use file integrity monitoring tools to detect unauthorized changes to files.
• Intrusion Detection Systems (IDS): Deploy IDS to detect and alert on suspicious network activities.

Patch Analysis:

• Changeset: Review the changeset (https://plugins.trac.wordpress.org/changeset/3222672/brizy/tags/2.6.5/editor/zip/archiver.php) to understand the specific fixes applied.
• Code Review: Conduct a thorough code review of the patched version to ensure all vulnerabilities are addressed.

References:

• NVD Entry: https://nvd.nist.gov/vuln/detail/CVE-2024-10960
• Wordfence Analysis: https://www.wordfence.com/threat-intel/vulnerabilities/id/2f0c85f4-07ae-4a2b-bd82-93467e7d9325?source=cve

By following these recommendations and maintaining a proactive security posture, organizations can significantly reduce the risk associated with this vulnerability.