CVE-2024-29929 in WCFM Plugin
Summary
by MITRE • 03/27/2024
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in WC Lovers WCFM – Frontend Manager for WooCommerce allows Stored XSS.This issue affects WCFM – Frontend Manager for WooCommerce: from n/a through 6.7.8.
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Analysis
by VulDB Data Team • 04/12/2025
This cross-site scripting vulnerability exists within the WC Lovers WCFM – Frontend Manager for WooCommerce plugin, specifically in versions prior to 6.7.8, creating a persistent security risk for WordPress websites utilizing this e-commerce extension. The flaw manifests during web page generation when user input is inadequately sanitized or escaped, allowing malicious scripts to be stored and subsequently executed in the context of other users' browsers. This represents a classic stored XSS attack vector where malicious code injected by an attacker can persist in the application's database and execute whenever affected pages are loaded by unsuspecting users.
The technical implementation of this vulnerability stems from insufficient input validation and output escaping mechanisms within the plugin's frontend manager functionality. When administrators or vendors submit content through the WCFM interface, the application fails to properly neutralize potentially malicious input before storing it in the database. This stored data is then retrieved and displayed on web pages without adequate sanitization, creating an environment where attacker-controlled scripts can be executed in the browser context of authenticated users. The vulnerability specifically impacts the plugin's user management and frontend submission features, where vendor profiles, product descriptions, and other user-generated content may be susceptible to injection attacks.
The operational impact of this vulnerability extends beyond simple script execution, as it can enable attackers to perform a wide range of malicious activities including session hijacking, credential theft, data exfiltration, and privilege escalation. An attacker who successfully exploits this vulnerability could gain access to administrator accounts, modify or delete critical shop data, inject malicious content into product listings, or redirect users to phishing sites. The stored nature of the XSS means that the attack persists even after the initial injection, making it particularly dangerous as it can affect multiple users over extended periods without requiring repeated exploitation attempts. This vulnerability directly aligns with CWE-79 which classifies improper neutralization of input during web page generation as a primary cause of cross-site scripting attacks, and follows the ATT&CK technique T1566.001 for initial access through malicious content.
Mitigation strategies for this vulnerability should prioritize immediate plugin updates to version 6.7.8 or later, where the XSS flaws have been addressed through proper input sanitization and output escaping mechanisms. Administrators should implement additional security measures including regular security audits of plugin installations, monitoring for unauthorized modifications to user accounts, and implementing content security policies to limit script execution. Network-level protections such as web application firewalls can provide additional defense-in-depth, though they should not be relied upon as the sole protection mechanism. Security monitoring should focus on detecting unusual patterns in user submissions, particularly those containing script tags or other suspicious input patterns. The vulnerability underscores the critical importance of maintaining up-to-date plugins and following secure coding practices, as this issue could have been prevented through proper input validation and output encoding techniques that are standard in modern web application development practices.