CVE-2025-54050 in Responsive Addons for Elementor Plugin
Summary
by MITRE • 07/16/2025
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in CyberChimps Responsive Addons for Elementor allows Stored XSS. This issue affects Responsive Addons for Elementor: from n/a through 1.7.3.
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Analysis
by VulDB Data Team • 08/12/2025
This vulnerability represents a critical cross-site scripting flaw in the CyberChimps Responsive Addons for Elementor plugin, specifically within the web page generation functionality. The issue manifests as improper input neutralization during the dynamic creation of web pages, creating an environment where malicious scripts can be injected and subsequently executed in the context of other users' browsers. The vulnerability is classified as stored XSS, meaning that the malicious input is permanently stored on the server and then served to other users without proper sanitization or encoding, making it particularly dangerous as it can affect multiple victims over time. This type of vulnerability falls under CWE-79 which specifically addresses cross-site scripting flaws and aligns with ATT&CK technique T1566.001 for initial access through malicious web content.
The technical flaw occurs when the plugin processes user input through its responsive addons functionality, particularly during the generation of dynamic web page elements. Attackers can exploit this weakness by submitting malicious scripts through input fields that are then stored within the plugin's database or configuration files. When other users view pages that utilize these addons, the stored malicious code executes in their browsers, potentially leading to session hijacking, data theft, or further compromise of the affected systems. The vulnerability affects all versions of the Responsive Addons for Elementor plugin up to and including version 1.7.3, indicating that the flaw has existed for some time without proper mitigation.
The operational impact of this vulnerability extends beyond simple script execution, as it can enable attackers to gain unauthorized access to user sessions, steal sensitive information, or manipulate content on affected websites. Since the vulnerability allows for stored XSS, the malicious code persists and can affect any user who interacts with the compromised pages, potentially leading to widespread compromise across a website's user base. This makes the vulnerability particularly concerning for websites that rely on user-generated content or have multiple administrators, as a single compromised input field can provide attackers with persistent access to the entire system. The vulnerability directly impacts the integrity and confidentiality of data processed by the Elementor page builder platform.
Mitigation strategies for this vulnerability should include immediate patching of the Responsive Addons for Elementor plugin to version 1.7.4 or later, which should contain the necessary fixes for the XSS flaw. Organizations should also implement input validation and output encoding mechanisms to prevent similar issues in other parts of their web applications. Regular security audits and penetration testing should be conducted to identify and remediate similar vulnerabilities across the entire web application stack. Additionally, implementing content security policies and monitoring user input for malicious patterns can provide additional layers of defense against such attacks, aligning with the defensive techniques outlined in the ATT&CK framework under T1566.001 and related techniques for preventing initial access through web-based attacks.