WordPress File Upload <= 4.24.15 - Ongeautoriseerde Remote Code Execution, Arbitrary File Read en Arbitrary File Deletion

The impact of CVE-2024-11613 is severe. Successful exploitation allows an attacker to execute arbitrary code on the web server hosting the WordPress site. This could involve installing malware, stealing sensitive data (user credentials, database contents, configuration files), modifying website content, or even pivoting to other systems on the network. The lack of authentication required for exploitation significantly broadens the attack surface, making it accessible to a wide range of threat actors. The vulnerability's location within a file download handler ('wfufiledownloader.php') makes it particularly insidious, as attackers can potentially leverage legitimate download functionality to mask their malicious activity.

WordPress websites utilizing the File Upload plugin, particularly those running older versions (≤4.24.15), are at significant risk. Shared hosting environments are especially vulnerable, as they often lack granular control over plugin updates and security configurations. Websites with custom integrations or extensions built on top of the File Upload plugin may also be affected.

• wordpress / composer / npm:

grep -r 'wfu_file_downloader.php' /var/www/html/

• generic web:

curl -I https://your-wordpress-site.com/wp-content/plugins/wordpress-file-upload/wfu_file_downloader.php | grep -i 'source='

• wordpress / composer / npm:

wp plugin list | grep 'WordPress File Upload'

• wordpress / composer / npm:

wp plugin update wordpress-file-upload --all

1. 2025-01-08Disclosure

   disclosure

1. Gereserveerd2024-11-21
2. Gepubliceerd2025-01-08
3. EPSS bijgewerkt2026-04-02

The primary mitigation for CVE-2024-11613 is to upgrade the WordPress File Upload plugin to a version with the security patch. If immediate upgrading is not possible due to compatibility issues or breaking changes, consider temporarily disabling the plugin. While not a complete solution, implementing strict file upload restrictions within WordPress itself (limiting allowed file types and sizes) can reduce the attack surface. Monitor web server access logs for suspicious activity related to 'wfufiledownloader.php', specifically looking for unusual parameters or file requests. After upgrading, confirm the vulnerability is resolved by attempting a controlled code execution test on a staging environment.

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