CVE-2026-108482 in Premium Addons for Elementor Plugin
Summary
by MITRE • 10/12/2026
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in LeapWorx Premium Addons for Elementor premium-addons-for-elementor allows Stored XSS.This issue affects Premium Addons for Elementor: from n/a through 4.11.110.
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Analysis
by VulDB Data Team • 10/12/2026
The identified security flaw represents a classic instance of Improper Neutralization of Input During Web Page Generation, commonly known as Cross-site Scripting or XSS. Specifically, this vulnerability manifests as a Stored XSS within the LeapWorx Premium Addons for Elementor plugin ecosystem. Unlike reflected XSS attacks where malicious scripts are executed immediately via a crafted link, stored vulnerabilities persist on the target server. In this context, an attacker can inject malicious JavaScript code into input fields that are subsequently saved to the database or file system by the WordPress application. When other users or administrators later view the affected page content generated by Elementor, the browser interprets and executes the embedded script as part of the legitimate web page. This persistence mechanism significantly amplifies the risk profile because the payload does not require social engineering tricks like phishing links to trigger; it is automatically served to every visitor who accesses the compromised content.
The technical root cause lies in insufficient sanitization or validation of user-supplied data before it is rendered into HTML output by the plugin's rendering engine. The affected versions, ranging from n/a through 4.11.110, fail to properly escape special characters such as angle brackets, quotes, and ampersands within specific input parameters. This lack of proper encoding allows attackers to break out of the intended data context and inject executable script tags or event handlers like onerror or onload attributes. Because Elementor is a visual page builder that heavily relies on dynamic content rendering, any component accepting user input without rigorous validation becomes an attack vector. The vulnerability likely exists in fields where users can customize widget settings, post metadata, or custom HTML elements provided by the premium addons suite.
The operational impact of this Stored XSS vulnerability is severe and multifaceted. Once a successful injection occurs, the malicious script executes with the privileges of any user viewing the page. If an administrator views the compromised content, the attacker gains full control over the WordPress dashboard, potentially leading to complete site compromise, defacement, or installation of further malware such as web shells or backdoors. For regular users and visitors, the attack can result in session hijacking through cookie theft, allowing attackers to impersonate authenticated users. Additionally, stored XSS is frequently leveraged for credential harvesting by displaying fake login forms that capture usernames and passwords when victims attempt to authenticate on a trusted domain. This erosion of trust can also damage the reputation of the website owner if visitors are redirected to malicious sites or subjected to drive-by downloads exploiting browser vulnerabilities.
From an industry standards perspective, this vulnerability aligns with CWE-79: Improper Neutralization of Input During Web Page Generation (Cross-site Scripting). The attack methodology corresponds to MITRE ATT&CK technique T1059.007, which covers JavaScript execution within web browsers. Furthermore, the persistence aspect maps to T1189 Drive-by Compromise or potentially T1204 User Execution if combined with social engineering for initial access. To mitigate this risk, immediate action is required by updating the Premium Addons for Elementor plugin to a version newer than 4.11.110 where these input validation issues have been addressed. Developers should implement strict output encoding using functions like htmlspecialchars in PHP contexts and ensure that Content Security Policy headers are deployed to restrict script execution sources. Regular security audits focusing on user input handling across all widget modules within the Elementor ecosystem are recommended to prevent similar injection flaws from being introduced in future updates or custom code integrations.