What the vulnerability does
01Description
The URL Image Importer plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient file type validation in all versions up to, and including, 1.0.6. This is due to the plugin relying on a user-controlled Content-Type HTTP header to validate file uploads in the 'uimptr_import_image_from_url()' function which writes the file to the server before performing proper validation. This makes it possible for authenticated attackers, with Author-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible via the uploaded PHP file.
Explanation of Vulnerability in Simple Terms
02Summary
The URL Image Importer plugin for bww contains an unrestricted file upload vulnerability. An authenticated user with low privileges can upload arbitrary files to the server, potentially including executable code. This allows an attacker to run their own code on the site and compromise the entire installation. The vulnerability affects versions 1.0 through 1.0.6.
What an attacker can do
03Attacker Capabilities
Upload and execute arbitrary files on the server, including malicious code.
Potential impact on your site
04Site Impact
Complete site compromise; attacker can read/modify data, create admin accounts, or deface the site.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege user account on the site.
Key dates
06Disclosure timeline
November 21, 2025
CVE published
November 21, 2025
Record updated
