WordPress - File Upload Authorisation Bypass

Details of BNVL-2018-0040

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Name: WordPress - File Upload Authorisation Bypass

CVE ID: (Not set)

Related links:
Description:

Security-Assessment.com has discovered that the plugin upload function within the WordPress administrative interface is vulnerable to an un-validated file upload attack. Whilst the media upload functionality successfully validates the uploaded file and rejects those not matching the correct extension, the plugin upload functionality does not. This allows an authenticated WordPress administrative user to upload arbitrary files, including a malicious PHP script, into the Wordpress web-root. If a WordPress plugin has previously been installed, WordPress will use saved SFTP credentials as part of the upload process. If the credentials have changed or a plugin has not previously been installed, the application prompts the user for credentials. Regardless of installation status and prior to the user being prompted for SFTP credentials, the file is uploaded into the "/wp-content/uploads/" directory.

Incident volume (Last 14 days)