CVE-2024-47393 in Quill Forms Plugin
Summary
by MITRE • 10/05/2024
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Mohamed Magdy Quill Forms quillforms allows Stored XSS.This issue affects Quill Forms: from n/a through <= 3.7.0.
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Analysis
by VulDB Data Team • 04/05/2026
The vulnerability identified as CVE-2024-47393 represents a critical cross-site scripting flaw within the Quill Forms plugin for WordPress, specifically impacting versions through 3.7.0. This stored XSS vulnerability arises from inadequate input sanitization during web page generation processes, creating a persistent security risk that can affect all users interacting with forms processed through the vulnerable plugin. The issue stems from the plugin's failure to properly neutralize user-supplied input before rendering it in web pages, allowing malicious scripts to be permanently stored and executed whenever affected pages are accessed.
The technical implementation of this vulnerability occurs within the form processing and rendering pipeline of Quill Forms, where user-generated content is not adequately filtered or escaped before being embedded into HTML output. This flaw falls under CWE-79 which specifically addresses Cross-Site Scripting vulnerabilities, and more precisely aligns with CWE-80 which deals with improper neutralization of input during web page generation. Attackers can exploit this weakness by crafting malicious script payloads within form fields or configuration parameters that are then stored in the database and executed whenever the form data is displayed, making this a persistent threat that affects all users who encounter the compromised content.
The operational impact of this stored XSS vulnerability extends beyond simple data theft or defacement, as it provides attackers with the ability to execute arbitrary JavaScript code within the context of authenticated user sessions. This capability enables sophisticated attacks including session hijacking, credential theft, privilege escalation, and data exfiltration from users who interact with compromised forms. The vulnerability affects the entire WordPress ecosystem where Quill Forms is installed, potentially allowing attackers to gain unauthorized access to user accounts, modify form configurations, or inject malicious content that persists across multiple user interactions. According to ATT&CK framework, this vulnerability maps to T1566.001 (Phishing via Social Media) and T1059.007 (Command and Scripting Interpreter: JavaScript) as attackers can leverage the stored scripts to perform various malicious activities.
Mitigation strategies for CVE-2024-47393 require immediate attention through plugin updates to versions that address the input sanitization flaws, as well as implementing additional defensive measures such as content security policies and input validation at multiple layers of the application architecture. Organizations should conduct comprehensive security assessments of all WordPress installations using Quill Forms, review existing form data for potential malicious payloads, and implement monitoring systems to detect anomalous script execution patterns. The recommended approach includes upgrading to the latest stable version of Quill Forms, implementing web application firewalls with XSS detection capabilities, and establishing regular security audits of form processing components to prevent similar vulnerabilities from emerging in other parts of the application stack.