CVE-2024-53763 in Best Addons for Elementor Plugin
Summary
by MITRE • 12/01/2024
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Rejuan Ahamed Best Addons for Elementor allows Stored XSS.This issue affects Best Addons for Elementor: from n/a through 1.0.5.
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Analysis
by VulDB Data Team • 02/22/2025
The vulnerability CVE-2024-53763 represents a critical cross-site scripting weakness in the Best Addons for Elementor plugin, specifically impacting versions ranging from the initial release through 1.0.5. This stored XSS flaw occurs during the web page generation process when the plugin fails to properly sanitize user input before incorporating it into dynamically generated web content. The vulnerability stems from inadequate input validation and output encoding mechanisms within the plugin's codebase, creating an exploitable condition where malicious scripts can be injected and subsequently executed in the context of affected users' browsers.
The technical implementation of this vulnerability involves the plugin's failure to neutralize potentially malicious input during the rendering of elementor templates and widgets. When administrators or users create content using the plugin's features, the system does not adequately filter or escape special characters that could be interpreted as executable script code. This allows an attacker to inject malicious JavaScript payloads through form fields, text areas, or other input mechanisms that the plugin processes. The stored nature of this vulnerability means that once the malicious input is submitted and saved within the plugin's data structures, it persists and executes whenever the affected page is loaded by other users, making it particularly dangerous for content management systems where multiple users interact with shared data.
The operational impact of this vulnerability extends beyond simple script execution, as it provides attackers with the capability to perform various malicious activities within the context of the vulnerable website. Attackers could potentially steal user sessions, modify content, redirect users to malicious sites, or even escalate privileges within the affected system. The vulnerability affects the integrity and confidentiality of user data, as the malicious scripts can access cookies, local storage, and other browser-based data that may contain sensitive information. This type of vulnerability directly violates the principle of least privilege and can compromise the security posture of entire websites that rely on the Elementor platform and its extensions.
Organizations should prioritize immediate remediation of this vulnerability by upgrading to the latest version of the Best Addons for Elementor plugin where the XSS flaw has been addressed. Security teams should implement comprehensive input validation measures, including the application of proper output encoding techniques such as HTML entity encoding for all user-generated content. The mitigation strategy should incorporate regular security audits of third-party plugins and themes, implementing a principle of least privilege for plugin permissions and access controls. This vulnerability aligns with CWE-79 which specifically addresses cross-site scripting flaws, and represents a significant concern under the ATT&CK framework's web application attacks category, particularly in the execution and persistence phases of cyber operations. Regular security monitoring and user education about the dangers of submitting untrusted content to web applications remain essential defensive measures against similar vulnerabilities.