The Avada | Website Builder For WordPress & WooCommerce theme for WordPress is vulnerable to Arbitrary File Upload in versions up to, and including, 7.16.2 via the convert_palette_images_to_truecolor() function. This is due to insufficient file type validation before processing uploaded files. This makes it possible for unauthenticated attackers to upload files that may be executable, which makes remote code execution possible.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
High
Difficult to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v3.1