CVE-2025-47504 in Custom Checkout Fields for WooCommerce Plugin
Summary
by MITRE • 05/07/2025
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in WPFactory Custom Checkout Fields for WooCommerce, WPFactory Customer Email Verification for WooCommerce allows Stored XSS.This issue affects Custom Checkout Fields for WooCommerce: from n/a through 1.8.3; Customer Email Verification for WooCommerce: from n/a through 3.0.2.
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Analysis
by VulDB Data Team • 12/31/2025
This vulnerability represents a critical cross-site scripting flaw that enables attackers to inject malicious scripts into web pages viewed by other users. The weakness specifically manifests in two WordPress plugins developed by WPFactory, namely Custom Checkout Fields for WooCommerce and Customer Email Verification for WooCommerce, where user input is inadequately sanitized during web page generation processes. The vulnerability allows for stored cross-site scripting attacks, meaning that malicious payloads persist in the application's database and execute whenever affected pages are loaded by unsuspecting users. This type of vulnerability falls under CWE-79 which defines improper neutralization of input during web page generation as a core weakness in web application security.
The technical implementation of this flaw occurs when the plugins fail to properly validate and sanitize user-provided data before incorporating it into dynamically generated HTML content. Attackers can exploit this by submitting malicious script code through checkout fields or email verification processes, which then gets stored in the database and executed in subsequent page loads. The affected versions span multiple release cycles, with Custom Checkout Fields for WooCommerce being vulnerable from unspecified versions through 1.8.3, and Customer Email Verification for WooCommerce affected from unspecified versions through 3.0.2, indicating this represents a long-standing security gap in the software development lifecycle. The vulnerability directly maps to attack techniques described in the ATT&CK framework under T1531 for Establishing Persistence and T1203 for Exploitation for Client Execution, as attackers can leverage this to maintain persistent access and execute malicious code in user browsers.
The operational impact of this vulnerability extends beyond simple script execution, as it enables attackers to perform session hijacking, steal sensitive user credentials, manipulate checkout processes, and potentially gain unauthorized access to customer accounts. Given that these plugins integrate with WooCommerce systems, attackers could potentially access customer payment information, personal data, and order details. The stored nature of the XSS vulnerability means that once exploited, the malicious scripts remain active until manually removed from the database, creating a persistent threat vector. Organizations using these plugins face significant risk of data breaches, customer trust erosion, and potential regulatory compliance violations under data protection frameworks such as gdpr and pci dss. The vulnerability's exploitation requires minimal technical skill, making it particularly dangerous as it can be targeted by automated attack tools, and the impact affects not only individual users but potentially entire customer bases.
Mitigation strategies should include immediate plugin updates to versions that address the XSS vulnerability, proper input validation and output encoding implementations, and comprehensive security audits of all user input handling processes. Organizations should implement content security policies to prevent script execution, conduct regular security testing, and establish proper monitoring for suspicious activities. The vulnerability demonstrates the critical importance of input sanitization in web applications and highlights the need for robust security practices throughout the software development lifecycle, including regular security assessments and timely patch management procedures.