Security Risk Category
file-upload Security Risks
Published vulnerability pages connected to file-upload. One risk can appear in multiple categories while keeping one canonical page.
file-upload risks
Showing 2 of 2 published risks.
Blocksy Companion Pro Arbitrary File Upload RCE Vulnerability
The Blocksy Companion plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 2.1.46 via the save_attachments function. This is due to the Custom Fonts extension registering a wp_check_filetype_and_ext filter that approves any filename containing .woff2 or .ttf as a substring via strpos() rather than validating that those strings appear as the final extension via PATHINFO_EXTENSION — allowing double-extension filenames such as shell.woff2.php to pass MIME validation and be handled as permitted font files. This makes it possible for unauthenticated attackers to upload files that may be executable, which makes remote code execution possible. This vulnerability is only exploitable when the premium version of the plugin (blocksy-companion-pro) is installed with both the WooCommerce Extra (Advanced Reviews) and Custom Fonts extensions active; the free blocksy-companion plugin does not contain the vulnerable code paths.
Updated Jul 10, 2026
Balbooa Forms Joomla Extension Arbitrary File Upload RCE Vulnerability
The Joomla extension Balbooa Forms is vulnerable to an unauthenticated arbitrary file upload that allows uploading executable files and leads to full RCE.
Updated Jul 10, 2026