CVE-2026-2486 is a stored Cross-Site Scripting (XSS) vulnerability identified in the Master Addons For Elementor plugin for WordPress, specifically in versions up to and including 2.1.1. The vulnerability stems from improper neutralization of input during web page generation, classified under CWE-79. The affected parameter is 'ma_el_bh_table_btn_text', which lacks sufficient input sanitization and output escaping. This allows an authenticated attacker with contributor-level privileges or higher to inject arbitrary JavaScript code into pages generated by the plugin. Because the malicious script is stored persistently, it executes automatically whenever any user accesses the compromised page, potentially leading to session hijacking, privilege escalation, or unauthorized actions performed in the context of the victim's browser session. The attack vector requires no user interaction beyond page access, increasing the risk of widespread impact. The vulnerability has a CVSS v3.1 score of 6.4, reflecting medium severity with network attack vector, low attack complexity, and privileges required. The scope is changed as the vulnerability affects other users beyond the attacker. No known public exploits have been reported yet, but the presence of this vulnerability in a popular WordPress plugin used globally makes it a significant concern. The plugin’s widespread use in various industries and regions increases the potential attack surface. The vulnerability does not impact availability but compromises confidentiality and integrity of user data and sessions. Mitigation requires patching or applying input validation and output encoding to the affected parameter to prevent script injection.

The primary impact of CVE-2026-2486 is the compromise of confidentiality and integrity of users interacting with affected WordPress sites. Attackers with contributor-level access can inject malicious scripts that execute in the browsers of site visitors, potentially leading to session hijacking, theft of sensitive information, unauthorized actions performed on behalf of users, and defacement of web content. This can damage organizational reputation, lead to data breaches, and facilitate further attacks such as phishing or malware distribution. Since the vulnerability requires authenticated access, insider threats or compromised contributor accounts pose a significant risk. The scope of affected systems is broad due to the popularity of WordPress and the Master Addons plugin, impacting websites globally across various sectors including e-commerce, media, education, and government. Although no availability impact is noted, the loss of trust and potential regulatory consequences from data exposure can be severe. Organizations failing to address this vulnerability may face increased risk of targeted attacks and exploitation as attackers develop proof-of-concept or weaponized exploits.

To mitigate CVE-2026-2486, organizations should immediately update the Master Addons For Elementor plugin to a version where the vulnerability is patched once available. In the absence of an official patch, administrators should implement strict input validation and output encoding on the 'ma_el_bh_table_btn_text' parameter to neutralize malicious scripts. Restrict contributor-level permissions to trusted users only and monitor for unusual activity or content changes indicative of exploitation attempts. Employ Web Application Firewalls (WAFs) with custom rules to detect and block suspicious script injection patterns targeting this parameter. Regularly audit user roles and permissions to minimize the risk of insider threats. Additionally, implement Content Security Policy (CSP) headers to limit the execution of unauthorized scripts on affected pages. Educate site administrators and contributors about the risks of XSS and safe content management practices. Finally, maintain comprehensive logging and monitoring to detect exploitation attempts early and respond promptly.