CVE-2024-50441 in Cozy Blocks Plugin
Summary
by MITRE • 10/28/2024
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in CozyThemes Cozy Blocks cozy-addons allows Stored XSS.This issue affects Cozy Blocks: from n/a through <= 2.0.15.
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Analysis
by VulDB Data Team • 04/06/2026
The vulnerability identified as CVE-2024-50441 represents a critical cross-site scripting flaw within the CozyThemes Cozy Blocks cozy-addons plugin, specifically impacting versions through 2.0.15. This weakness falls under the category of improper input neutralization during web page generation, creating a persistent security risk that allows attackers to inject malicious scripts into web pages viewed by other users. The vulnerability's classification aligns with CWE-79 which defines cross-site scripting as the failure to properly neutralize user input data when generating web pages, making it a fundamental web application security issue. The stored nature of this vulnerability means that malicious scripts are permanently saved within the application's database or storage system, making them persistent and potentially affecting multiple users over time.
The technical exploitation of this vulnerability occurs when unfiltered user input is processed and rendered within web pages without proper sanitization or encoding mechanisms. Attackers can craft malicious payloads that get stored within the plugin's data structures and subsequently executed whenever other users view affected pages or interact with the compromised content. This stored XSS vulnerability is particularly dangerous because the malicious scripts are not limited to a single session or request but remain active in the system until manually removed. The vulnerability affects the Cozy Blocks plugin ecosystem which is commonly used for WordPress website development, making it a potential entry point for attackers seeking to compromise WordPress installations that utilize this specific plugin version range.
From an operational standpoint, the impact of this vulnerability extends beyond simple script execution as it provides attackers with the capability to perform various malicious activities including session hijacking, credential theft, data exfiltration, and potential privilege escalation within affected systems. The attack surface is broad since the vulnerability affects a widely used WordPress plugin that could be present on numerous websites, potentially allowing attackers to compromise multiple sites simultaneously. The stored nature of the vulnerability means that the attack can persist even after the initial injection point, creating a long-term threat that may go unnoticed for extended periods. Security professionals should note that this vulnerability can be exploited by attackers with minimal technical expertise, as it leverages standard XSS attack patterns that are well-documented in security literature and commonly used in real-world attacks.
Mitigation strategies for CVE-2024-50441 should prioritize immediate patching of affected systems to version 2.0.16 or later where the vulnerability has been addressed. Organizations should implement comprehensive input validation and output encoding mechanisms to prevent similar issues from occurring in other parts of their web applications. The implementation of Content Security Policy headers can provide additional defense-in-depth measures against XSS attacks by restricting the sources from which scripts can be loaded. Security teams should also conduct thorough vulnerability assessments of their WordPress installations to identify other potentially vulnerable plugins or themes that may be susceptible to similar issues. According to ATT&CK framework, this vulnerability maps to T1566.001 which covers the technique of "Phishing: Spearphishing Attachment" and T1059.001 which covers "Command and Scripting Interpreter: Visual Basic", as attackers can leverage stored XSS to establish persistent access and execute malicious commands through compromised web interfaces. Regular security monitoring and automated scanning should be implemented to detect similar vulnerabilities in the broader WordPress ecosystem and other web applications that may be vulnerable to improper input handling.