CVE-2025-9113: Doccure WordPress Theme RCE Vulnerability

CVE-2025-9113 Overview

The Doccure theme for WordPress contains a critical arbitrary file upload vulnerability in the doccure_temp_upload_to_media function. This vulnerability exists due to missing file type validation, allowing unauthenticated attackers to upload arbitrary files to the affected site's server. Successful exploitation may lead to remote code execution, giving attackers complete control over the compromised WordPress installation.

Critical Impact

Unauthenticated attackers can upload malicious files including PHP webshells, potentially achieving full server compromise through remote code execution.

Affected Products

• Doccure WordPress Theme versions up to and including 1.4.8
• WordPress installations using the vulnerable Doccure Medical theme
• Sites running unpatched versions of the Doccure theme from ThemeForest

Discovery Timeline

• September 8, 2025 - CVE-2025-9113 published to NVD
• September 9, 2025 - Last updated in NVD database

Technical Details for CVE-2025-9113

Vulnerability Analysis

This vulnerability is classified as CWE-434: Unrestricted Upload of File with Dangerous Type. The core issue stems from the doccure_temp_upload_to_media function failing to implement proper file type validation before processing uploaded files. Because the function lacks authentication requirements, any remote attacker can interact with this upload functionality without needing credentials.

The attack can be executed over the network without any user interaction required. The vulnerability allows attackers to potentially compromise the confidentiality, integrity, and availability of the affected system. Once a malicious PHP file is uploaded, the attacker can execute arbitrary code with the same privileges as the web server process.

Root Cause

The root cause is the absence of file type validation in the doccure_temp_upload_to_media function. WordPress themes should implement strict allowlisting of permitted file extensions and MIME types for any upload functionality. The Doccure theme fails to perform these essential security checks, treating all uploaded files equally regardless of their potentially dangerous nature.

Additionally, the function appears to be accessible without authentication, violating the principle of defense in depth. Upload functionality should always require authenticated sessions, especially when handling files that could affect server-side execution.

Attack Vector

The attack vector is network-based, requiring no authentication or user interaction. An attacker can craft HTTP requests to the vulnerable endpoint, uploading malicious files such as PHP webshells. The attack flow typically involves:

1. Identifying WordPress sites using the vulnerable Doccure theme
2. Crafting a multipart form-data request containing a malicious PHP file
3. Submitting the request to the vulnerable doccure_temp_upload_to_media endpoint
4. Accessing the uploaded file directly to execute arbitrary PHP code

The vulnerability allows attackers to bypass intended security restrictions by exploiting the missing file type validation. For detailed technical analysis, refer to the Wordfence Vulnerability Report.

Detection Methods for CVE-2025-9113

Indicators of Compromise

• Unexpected PHP files appearing in WordPress upload directories or theme folders
• Web server logs showing POST requests to endpoints associated with doccure_temp_upload_to_media
• Newly created files with suspicious names or encoded content in the wp-content/uploads directory
• Unusual outbound connections from the web server process

Detection Strategies

• Monitor file system changes in WordPress directories, particularly wp-content/uploads and theme directories
• Implement web application firewall (WAF) rules to detect and block file upload attempts containing PHP content
• Analyze web server access logs for POST requests to Doccure theme endpoints with file upload payloads
• Deploy integrity monitoring to alert on new executable files in web-accessible directories

Monitoring Recommendations

• Enable detailed logging for WordPress and PHP to capture upload-related activities
• Configure SentinelOne Singularity to monitor for suspicious process spawning from web server contexts
• Set up alerts for new .php files created in upload directories outside of normal administrative actions
• Monitor for webshell signatures and behaviors commonly associated with post-exploitation activity

How to Mitigate CVE-2025-9113

Immediate Actions Required

• Update the Doccure theme to a patched version immediately (versions after 1.4.8 if available)
• If no patch is available, consider temporarily disabling the Doccure theme and switching to an alternative
• Conduct a thorough review of all uploaded files to identify any malicious content
• Implement WAF rules to block suspicious file uploads targeting WordPress themes
• Review web server logs for signs of exploitation attempts

Patch Information

Check the ThemeForest Product Page for updated versions of the Doccure theme that address this vulnerability. Ensure automatic updates are enabled where possible, and subscribe to security advisories for the theme. The Wordfence Vulnerability Report provides additional details on remediation.

Workarounds

• Implement server-side file type restrictions at the web server level to block PHP file uploads
• Add authentication requirements to the upload endpoint via WordPress capability checks or .htaccess rules
• Use a security plugin like Wordfence to add an additional layer of upload validation
• Disable or restrict access to the vulnerable function through custom code modifications if the theme must remain active

# Apache .htaccess example to restrict PHP uploads in wp-content/uploads
<Directory "/var/www/html/wp-content/uploads">
    <FilesMatch "\.php$">
        Require all denied
    </FilesMatch>
</Directory>