What the vulnerability does
01Description
The Demo Importer Plus plugin for WordPress is vulnerable to arbitrary file upload in all versions up to, and including, 2.0.6. This is due to insufficient file type validation detecting WXR files, allowing double extension files to bypass sanitization while being accepted as a valid WXR file. 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.
Explanation of Vulnerability in Simple Terms
02Summary
Demo Importer Plus versions 2.0.6 and earlier allow authenticated users to upload files without proper validation. An attacker with low-level site access can upload malicious files, including executable code, to compromise the site. The vulnerability requires a valid user account but no special privileges.
What an attacker can do
03Attacker Capabilities
Upload and execute malicious files on the site, including PHP code.
Potential impact on your site
04Site Impact
Attackers with basic user accounts can run their own code on your site and access sensitive data.
Conditions required to exploit
05Prerequisites
Valid user account with low-level site access; no special role or admin privileges required.
Key dates
06Disclosure timeline
December 5, 2025
CVE published
April 8, 2026
Record updated
