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A Deep Dive into the Royal Elementor Addons Plugin Vulnerability and How to Protect Your WordPress Site.
CVE: CVE-2024–3889
Date: 23 Apr 2024
Severity: Medium
Attack Vector: Network
WordPress is a popular platform for building websites, with countless plugins and themes designed to add functionality and customization. However, with its popularity comes a range of security risks. One such risk is a vulnerability discovered in the Royal Elementor Addons and Templates plugin, which affects all versions including 1.3.971. This vulnerability allows for Stored Cross-Site Scripting (XSS), a potentially severe security threat.
Cross-site scripting, or XSS, is a type of security vulnerability commonly found in web applications. It occurs when an attacker can inject malicious scripts into a website, which then run on a visitor’s browser. There are two main types of XSS:
The Royal Elementor Addons and Templates plugin is an extension for the Elementor page builder in WordPress. It provides additional widgets and templates to enhance the design and functionality of WordPress websites. One of these widgets is the “Advanced Accordion,” which allows users to create foldable sections on a webpage.
The vulnerability arises from insufficient input sanitization and output escaping. In simpler terms, this means that the plugin does not properly clean or “sanitize” the data entered by users, allowing malicious scripts to be injected or you can say that there is no proper input validation. The output escaping process, which should ensure that data displayed on a page is safe, is also inadequate.
Specifically, the vulnerability is related to the accordion_title_tag attribute. An attacker with contributor-level access or higher can exploit this weakness to inject web scripts into pages that contain the Advanced Accordion widget. When someone accesses the page with the injected script, the script is executed in their browser, leading to harmful outcomes like data theft, session hijacking, or malware distribution.
If you use the Royal Elementor Addons plugin, it’s crucial to take immediate steps to secure your website:
The code snippet demonstrates the introduction of a whitelist to validate user input, preventing potentially harmful HTML tags from being injected into the output. By ensuring that only predefined safe tags are used, the risk of Stored XSS is significantly reduced. This is an important security measure to protect WordPress sites from malicious attacks.
The vulnerability in the Royal Elementor Addons and Templates plugin highlights the importance of staying vigilant about website security. By understanding the risks and taking proactive measures, you can help protect your WordPress site from security threats like Stored Cross-Site Scripting. Keep your plugins and themes updated, use security tools, and be cautious with user permissions to reduce the risk of exploitation.
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