CVE-2025-49424 is a medium-severity DOM-based Cross-site Scripting (XSS) vulnerability identified in the Essential Doo Components for Visual Composer developed by diego.benna. This vulnerability arises due to improper neutralization of input during web page generation, classified under CWE-79. Specifically, the vulnerability allows an attacker to inject malicious scripts into the DOM environment of affected web pages, which are then executed in the context of the victim's browser. The affected product versions include all versions up to 1.9, with no specific earliest version identified. The vulnerability requires network access (AV:N), has low attack complexity (AC:L), requires privileges (PR:L), and user interaction (UI:R). The scope is changed (S:C), meaning the vulnerability affects resources beyond the initially vulnerable component. The impact affects confidentiality, integrity, and availability to a limited extent (C:L/I:L/A:L). Although no known exploits are currently in the wild, the vulnerability poses a risk of session hijacking, defacement, or redirection to malicious sites if exploited. The lack of available patches at the time of publication increases the urgency for mitigation. The vulnerability is particularly relevant for websites using the Essential Doo Components for Visual Composer plugin, which is commonly used in WordPress environments to enhance page-building capabilities. Attackers could leverage this vulnerability by tricking authenticated users into clicking crafted links or visiting malicious pages, leading to execution of arbitrary scripts within their browser session.

For European organizations, this vulnerability could lead to unauthorized access to sensitive information, session hijacking, or manipulation of web content, potentially damaging brand reputation and causing data breaches. Organizations relying on WordPress sites enhanced with the Essential Doo Components for Visual Composer plugin are at risk, especially those with authenticated users such as customers or employees who have elevated privileges. The vulnerability could be exploited to bypass security controls, steal cookies or tokens, and perform actions on behalf of legitimate users. This is particularly concerning for sectors with strict data protection regulations like GDPR, where data leakage or unauthorized access can result in significant legal and financial penalties. Additionally, compromised websites could be used as platforms for phishing or malware distribution, amplifying the threat landscape for European users. The medium severity indicates a moderate risk, but the changed scope and requirement for user interaction mean targeted phishing or social engineering campaigns could increase the likelihood of successful exploitation.

1. Immediate mitigation should include disabling or removing the Essential Doo Components for Visual Composer plugin until a vendor patch is released. 2. Implement Content Security Policy (CSP) headers to restrict the execution of untrusted scripts and reduce the impact of potential XSS attacks. 3. Employ rigorous input validation and output encoding on all user-supplied data within the web application, especially in areas where the plugin interacts with user inputs. 4. Educate users and administrators about the risks of clicking on suspicious links and the importance of verifying URLs before interaction. 5. Monitor web application logs for unusual activities or signs of exploitation attempts, such as unexpected script injections or anomalous user behavior. 6. Once a patch is available from diego.benna, prioritize testing and deployment to affected systems. 7. Consider implementing web application firewalls (WAFs) with rules tailored to detect and block DOM-based XSS payloads targeting this plugin. 8. Regularly review and update all plugins and dependencies to minimize exposure to known vulnerabilities.