What the vulnerability does
01Description
The Quform - WordPress Form Builder plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 2.20.0 via the 'saveUploadedFile' function. This makes it possible for unauthenticated attackers to extract sensitive data, such as Personally Identifiable Information, from files uploaded by users. Files uploaded via forms created before version 2.21.0 will remain vulnerable to exposure after upgrading. To fully patch the plugin, site administrators should download any previously uploaded files, delete previously existing files and forms, and create the forms again after upgrading to version 2.21.0.
Explanation of Vulnerability in Simple Terms
02Summary
Quform WordPress Form Builder versions up to 2.20.0 expose sensitive information that can be accessed over the network without authentication. An attacker can retrieve data that should not be publicly visible, such as form submissions or configuration details. Update to a version newer than 2.20.0 to resolve this issue.
What an attacker can do
03Attacker Capabilities
Read sensitive form data or plugin configuration without logging in.
Potential impact on your site
04Site Impact
Visitor or form submission data may be exposed to unauthenticated attackers.
Conditions required to exploit
05Prerequisites
Network access to the WordPress site; no authentication or user interaction required.
Key dates
06Disclosure timeline
November 9, 2024
CVE published
April 8, 2026
Record updated
