EUVD-2025-201539

Comprehensive Technical Analysis of EUVD-2025-201539

1. Vulnerability Assessment and Severity Evaluation

The vulnerability identified in the 10Web Booster plugin for WordPress allows authenticated attackers with Subscriber-level access or higher to delete arbitrary folders on the server. This is due to insufficient file path validation in the get_cache_dir_for_page_from_url() function. The severity of this vulnerability is significant, as indicated by the CVSS Base Score of 9.6.

CVSS Vector Breakdown:

• AV:N (Network Vector): The vulnerability can be exploited remotely over the network.
• AC:L (Low Complexity): The attack is relatively straightforward to execute.
• PR:L (Low Privileges): The attacker needs only low-level privileges (Subscriber-level access).
• UI:N (No User Interaction): No user interaction is required for the attack to succeed.
• S:C (Changed Scope): The vulnerability affects resources beyond the security scope managed by the security authority.
• C:N (No Confidentiality Impact): There is no direct impact on the confidentiality of data.
• I:H (High Integrity Impact): The integrity of the system is significantly compromised.
• A:H (High Availability Impact): The availability of the system is significantly compromised.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Authenticated Users: An attacker with Subscriber-level access can exploit this vulnerability.
• Remote Exploitation: The attack can be executed remotely, making it a significant threat for web applications accessible over the internet.

Exploitation Methods:

• Arbitrary Folder Deletion: By manipulating the input to the get_cache_dir_for_page_from_url() function, an attacker can specify a path to any folder on the server, leading to its deletion.
• Denial of Service (DoS): Deleting critical folders can render the website inoperable, causing a DoS condition.
• Data Loss: Deletion of important folders can result in the loss of critical data, including user information, configuration files, and other essential resources.

3. Affected Systems and Software Versions

Affected Software:

• 10Web Booster – Website speed optimization, Cache & Page Speed optimizer plugin for WordPress

Affected Versions:

• All versions up to and including 2.32.7

Platform:

• WordPress installations using the affected plugin versions.

4. Recommended Mitigation Strategies

Immediate Actions:

• Update the Plugin: Ensure that the 10Web Booster plugin is updated to a version higher than 2.32.7.
• Access Control: Limit user privileges to the minimum necessary for their roles.
• Monitoring: Implement monitoring and logging to detect any suspicious activities related to folder deletions.

Long-Term Strategies:

• Regular Audits: Conduct regular security audits of all plugins and themes used in WordPress installations.
• Patch Management: Establish a robust patch management process to ensure timely updates of all software components.
• Security Training: Provide training to users and administrators on recognizing and mitigating potential security threats.

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 data loss and service disruption can have severe implications for businesses, including financial losses, reputational damage, and legal consequences under data protection regulations such as GDPR.

6. Technical Details for Security Professionals

Vulnerable Function:

• get_cache_dir_for_page_from_url()

Exploitation Steps:

1. Authentication: Obtain Subscriber-level access to the WordPress site.
2. Input Manipulation: Craft a malicious input that specifies a path to a critical folder.
3. Function Invocation: Trigger the get_cache_dir_for_page_from_url() function with the manipulated input.
4. Folder Deletion: The function processes the input and deletes the specified folder.

Detection and Prevention:

• Input Validation: Implement robust input validation to ensure that only valid paths are processed.
• Access Controls: Enforce strict access controls to limit the capabilities of low-privilege users.
• Intrusion Detection: Deploy intrusion detection systems (IDS) to monitor for unusual folder deletion activities.

References:

• Wordfence Threat Intelligence
• WordPress Plugin Changeset
• NVD CVE-2025-13377

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