CVE-2024-29815 in WP Change Email Sender Plugin
Summary
by MITRE • 03/27/2024
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Aminur Islam WP Change Email Sender allows Stored XSS.This issue affects WP Change Email Sender: from n/a before 1.3.0.
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Analysis
by VulDB Data Team • 04/12/2025
This vulnerability represents a critical cross-site scripting flaw that enables attackers to inject malicious scripts into web pages viewed by other users. The vulnerability exists within the WP Change Email Sender plugin, specifically in how it handles input sanitization during web page generation processes. The issue manifests as a stored XSS attack vector, meaning that malicious payloads can be permanently stored on the server and subsequently executed whenever users access affected pages. This particular vulnerability affects versions prior to 1.3.0 of the plugin, indicating that the developers have acknowledged and addressed the flaw in their subsequent releases.
The technical implementation of this vulnerability stems from insufficient input validation and sanitization mechanisms within the plugin's codebase. When users interact with the email sender functionality, the application fails to properly neutralize potentially malicious input data before incorporating it into dynamically generated web content. This allows attackers to inject script code that gets executed in the context of other users' browsers, creating a persistent security risk. The flaw aligns with CWE-79 which specifically addresses cross-site scripting vulnerabilities, and represents a classic example of how improper input handling can lead to severe client-side exploitation opportunities.
From an operational impact perspective, this vulnerability poses significant risks to WordPress installations using the affected plugin. Attackers can leverage this stored XSS vulnerability to hijack user sessions, steal sensitive cookies, perform unauthorized actions on behalf of users, or redirect victims to malicious websites. The persistent nature of stored XSS means that the attack remains effective until the malicious content is removed from the server, potentially affecting all users who access the compromised pages. This vulnerability particularly threatens websites with multiple users or those handling sensitive information, as it can facilitate data exfiltration and privilege escalation attacks.
Mitigation strategies should prioritize immediate plugin updates to version 1.3.0 or later, which contains the necessary patches to address the input sanitization issues. Administrators should also implement additional security measures including regular security audits of installed plugins, implementing content security policies to limit script execution, and monitoring for unusual activity in web application logs. The vulnerability demonstrates the importance of proper input validation and output encoding practices, aligning with ATT&CK technique T1566 which covers phishing through social engineering. Organizations should also consider implementing web application firewalls and regular penetration testing to identify similar vulnerabilities in their web applications.