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ThemeFusion’s multipurpose WordPress theme Avada has patched an Arbitrary File Upload Vulnerability. Avada is one of ThemeForest’s most popular premium themes with nearly 950k sales.
This vulnerability was reported responsibly by Muhammad Zeeshan (Xib3rR4dAr) during Wordfence’s Bug Bounty Extravaganza earning him $2,751. The researchers have categorized it as a “high severity” concern, with a CVSS score of 8.8, and strongly recommend updating the theme.
The Avada | Website Builder For WordPress & WooCommerce theme for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the ajax_import_options() function in all versions up to, and including, 7.11.4. This makes it possible for authenticated attackers, with contributor-level access and above, to upload arbitrary files on the affected site’s server which may make remote code execution possible.