CVE-2025-7526

Comprehensive Technical Analysis of CVE-2025-7526

1. Vulnerability Assessment and Severity Evaluation

CVE ID: CVE-2025-7526 CVSS Score: 9.8

The vulnerability in the WP Travel Engine – Tour Booking Plugin – Tour Operator Software for WordPress allows for arbitrary file deletion due to insufficient file path validation in the set_user_profile_image function. This vulnerability is critical, as it can lead to remote code execution (RCE) if an attacker deletes crucial files such as wp-config.php.

Severity Evaluation:

• CVSS Base Score: 9.8 (Critical)
• Impact: High
• Exploitability: High

The high CVSS score indicates that this vulnerability poses a significant risk. The ability for unauthenticated attackers to delete arbitrary files and potentially execute remote code makes it a top priority for immediate remediation.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Unauthenticated Access: Attackers can exploit this vulnerability without needing to authenticate, making it easier to target.
• File Deletion: By manipulating the file path in the set_user_profile_image function, attackers can delete any file on the server.
• Remote Code Execution (RCE): Deleting critical files like wp-config.php can disrupt the WordPress installation, potentially allowing attackers to inject malicious code.

Exploitation Methods:

• Path Traversal: Attackers can use path traversal techniques to specify file paths outside the intended directory.
• File Renaming: By renaming files, attackers can bypass certain security checks and delete files that should be protected.

3. Affected Systems and Software Versions

Affected Software:

• WP Travel Engine – Tour Booking Plugin – Tour Operator Software for WordPress
• Versions: All versions up to and including 6.6.7

Affected Systems:

• Any WordPress installation using the vulnerable versions of the WP Travel Engine plugin.

4. Recommended Mitigation Strategies

Immediate Actions:

• Update the Plugin: Ensure that the WP Travel Engine plugin is updated to a version that addresses this vulnerability.
• Disable the Plugin: If an update is not available, consider disabling the plugin until a patch is released.
• Monitor for Suspicious Activity: Implement monitoring to detect any unusual file deletions or modifications.

Long-Term Mitigation:

• Regular Updates: Keep all WordPress plugins and core files up to date.
• Access Controls: Implement strict access controls and authentication mechanisms.
• File Integrity Monitoring: Use file integrity monitoring tools to detect unauthorized changes to critical files.
• Web Application Firewall (WAF): Deploy a WAF to filter out malicious requests.

5. Impact on Cybersecurity Landscape

This vulnerability highlights the ongoing risk associated with third-party plugins in content management systems (CMS) like WordPress. The ease of exploitation and the potential for RCE underscore the importance of regular security audits and timely updates. The cybersecurity community must continue to emphasize the need for secure coding practices and thorough validation of user inputs to prevent such vulnerabilities.

6. Technical Details for Security Professionals

Vulnerable Function:

• set_user_profile_image in the class-wp-travel-engine-form-handler.php file.

Code Snippet (Vulnerable Section):

public function set_user_profile_image($user_id, $image_path) {
    // Insufficient file path validation
    $new_path = sanitize_file_name($image_path);
    rename($image_path, $new_path);
    // Additional code...
}

Exploitation Example: An attacker could craft a request to rename a critical file:

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

action=set_user_profile_image&user_id=1&image_path=../../../../wp-config.php

Mitigation Code Example: Ensure proper file path validation:

public function set_user_profile_image($user_id, $image_path) {
    // Validate file path
    if (!preg_match('/^[a-zA-Z0-9_\-\.]+$/', $image_path)) {
        return false;
    }
    $new_path = sanitize_file_name($image_path);
    rename($image_path, $new_path);
    // Additional code...
}

References:

• WordPress Plugin Repository
• Wordfence Threat Intelligence

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