CVE-2024-47378 in Member Plugin
Summary
by MITRE • 10/05/2024
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Lomu WPCOM Member wpcom-member allows Reflected XSS.This issue affects WPCOM Member: from n/a through <= 1.5.4.
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Analysis
by VulDB Data Team • 04/05/2026
The vulnerability identified as CVE-2024-47378 represents a critical cross-site scripting flaw within the Lomu WPCOM Member plugin, specifically affecting versions up to and including 1.5.4. This reflected XSS vulnerability occurs during the web page generation process when input data is improperly neutralized, creating an avenue for malicious actors to inject harmful scripts into web pages viewed by other users. The flaw manifests when user-supplied input is directly incorporated into dynamically generated web content without adequate sanitization or encoding measures, allowing attackers to execute arbitrary JavaScript code within the victim's browser context.
The technical nature of this vulnerability aligns with CWE-79, which specifically addresses improper neutralization of input during web page generation, commonly known as cross-site scripting. This classification indicates that the vulnerability stems from insufficient validation and sanitization of user input that flows into web page content. The reflected nature of the XSS means that the malicious script is reflected off the web server, typically through a link that when clicked by a victim triggers the execution of the malicious code. This variant of XSS is particularly dangerous as it requires no persistence on the server side and can be delivered through various attack vectors including email phishing, social media messages, or compromised websites that direct users to malicious URLs containing the crafted payloads.
The operational impact of this vulnerability extends beyond simple script execution, as it can enable attackers to perform a wide range of malicious activities within the victim's browser session. Attackers could potentially steal user authentication cookies, session tokens, or other sensitive information stored in the browser. The vulnerability creates a persistent threat vector that allows for session hijacking, credential theft, and potential privilege escalation within the affected WordPress environment. Additionally, the compromised user sessions could be leveraged to perform unauthorized actions on behalf of legitimate users, including modifying content, accessing restricted areas, or even installing malicious plugins.
Mitigation strategies for CVE-2024-47378 should prioritize immediate remediation through plugin updates to versions that address the XSS vulnerability. System administrators should implement comprehensive input validation and output encoding mechanisms to prevent malicious data from being executed as scripts. The principle of least privilege should be enforced by ensuring that user inputs are properly sanitized before being rendered in web pages, with special attention to HTML encoding of dynamic content. Network-level protections such as web application firewalls and content security policies can provide additional defense-in-depth measures. Regular security audits and vulnerability assessments should be conducted to identify similar input validation issues, while user education about suspicious links and phishing attempts remains crucial for overall security posture. Organizations should also consider implementing automated monitoring systems to detect and respond to potential exploitation attempts targeting this vulnerability. The ATT&CK framework categorizes this type of vulnerability under T1059.007 for scripting and T1566 for phishing techniques, highlighting the multi-faceted nature of the threat landscape where such vulnerabilities serve as entry points for broader attack chains.