CVE-2024-38738 in Change From Email Plugin
Summary
by MITRE • 07/20/2024
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Marian Kadanka Change From Email allows Stored XSS.This issue affects Change From Email: from n/a through 1.2.1.
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Analysis
by VulDB Data Team • 03/17/2025
This vulnerability represents a critical cross-site scripting weakness that enables attackers to inject malicious scripts into web pages viewed by other users. The flaw exists within the Change From Email plugin developed by Marian Kadanka, specifically affecting versions ranging from the initial release through 1.2.1. The vulnerability falls under the CWE-79 category of Cross-site Scripting, which is one of the most prevalent and dangerous web application security flaws. Stored XSS vulnerabilities are particularly concerning because malicious payloads are permanently stored on the server and executed whenever users access the affected web page, making them more persistent and damaging than reflected XSS variants.
The technical implementation of this vulnerability stems from inadequate input sanitization and output encoding within the plugin's web page generation process. When users input data into the plugin's interface, particularly in fields related to email configuration or message content, the application fails to properly neutralize potentially malicious input before rendering it in the web interface. This improper handling allows attackers to inject script tags or other malicious code that gets executed in the context of other users' browsers when they view affected pages. The vulnerability specifically impacts how the plugin processes and displays user-supplied information, creating an attack surface where malicious payloads can be stored and subsequently executed without requiring additional user interaction beyond visiting the compromised page.
The operational impact of this vulnerability extends beyond simple data theft or defacement, as it provides attackers with the ability to perform session hijacking, steal sensitive user credentials, and execute arbitrary commands on affected systems. An attacker could exploit this vulnerability to impersonate legitimate users, access restricted areas of the web application, or redirect users to malicious websites. The stored nature of the vulnerability means that once an attacker successfully injects malicious code, it will affect all users who visit the compromised page, potentially affecting hundreds or thousands of users depending on the application's scale. This vulnerability also aligns with ATT&CK technique T1566.001 for initial access through spearphishing attachments or links, as attackers could use this vulnerability to deliver malicious payloads that compromise user sessions.
Mitigation strategies should focus on implementing comprehensive input validation and output encoding mechanisms throughout the application. The most effective approach involves sanitizing all user inputs using established libraries and frameworks that properly escape or encode potentially dangerous characters before rendering them in web pages. Implementing Content Security Policy headers can provide an additional layer of protection by restricting the sources from which scripts can be loaded and executed. Regular security updates and patches should be applied immediately upon availability, as the vulnerability affects a specific version range that can be easily identified and addressed. Organizations should also conduct thorough security testing including dynamic application security testing and manual penetration testing to identify similar vulnerabilities in other components. The implementation of proper access controls and least privilege principles can limit the potential damage if an attacker successfully exploits this vulnerability, while regular monitoring of application logs can help detect suspicious activities related to XSS attempts.