Subscriber XSS in RT Mega Menu for Elementor & Gutenberg

Executive Summary

This is a Subscriber Cross Site Scripting (XSS) vulnerability in the RT Mega Menu plugin for WordPress, affecting versions 1.5.1 and below. It allows attackers to inject malicious scripts into websites that execute when visitors access the site. Exploitation requires a privileged user to perform an action like clicking a malicious link.

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Detection Guidance

This vulnerability is specific to the RT Mega Menu WordPress plugin versions 1.5.1 and below. To detect it, check the installed version of the plugin via WordPress admin panel or database. Look for version 1.5.1 or lower. No specific commands are provided in the context, but monitoring for unusual script execution or user reports of malicious activity may indicate exploitation.

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Impact Analysis

Attackers could inject malicious scripts into your website, potentially stealing user data, session cookies, or performing actions on behalf of users. Visitors to your site may be exposed to these scripts without their knowledge, leading to security breaches or unauthorized access.

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Compliance Impact

This vulnerability could lead to data breaches, which may violate GDPR and HIPAA requirements for protecting user data. Non-compliance could result in legal penalties, fines, or reputational damage due to unauthorized access or data exposure.

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Mitigation Strategies

Immediately update the RT Mega Menu plugin to version 1.5.2 or later. If updating is not possible, use Patchstack’s mitigation rule to block attacks until the update is applied. Remove any untrusted user accounts with privileged access and monitor for suspicious activity.

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