What the vulnerability does
01Description
The Shared Files – Frontend File Upload Form & Secure File Sharing plugin for WordPress is vulnerable to Stored Cross-Site Scripting via html File uploads in all versions up to, and including, 1.7.48 due to insufficient input sanitization and output escaping within the sanitize_file() function. This makes it possible for unauthenticated attackers to bypass the plugin’s MIME-only checks and inject arbitrary web scripts in pages that will execute whenever a user accesses the html file.
Explanation of Vulnerability in Simple Terms
02Summary
Shared Files versions up to 1.7.48 contain a cross-site scripting (XSS) vulnerability that allows unauthenticated attackers to inject malicious scripts into the site without user interaction. The vulnerability affects the file upload form and can impact all site visitors. Update to a version newer than 1.7.48 to resolve this issue.
What an attacker can do
03Attacker Capabilities
Inject malicious JavaScript that runs in visitors' browsers and steals session cookies or credentials.
Potential impact on your site
04Site Impact
Visitors' browsers execute attacker-controlled scripts, risking credential theft and account compromise across your site.
Conditions required to exploit
05Prerequisites
None. The attacker needs only network access; no authentication or user interaction required.
Key dates
06Disclosure timeline
June 3, 2025
CVE published
April 8, 2026
Record updated
