CVE-2025-59553

The vulnerability is a DOM-Based Cross-Site Scripting (XSS) issue in the Custom iFrame for Elementor plugin for WordPress, affecting versions up to and including 1.0.13. The plugin fails to properly neutralize user input during web page generation, allowing an attacker to inject arbitrary JavaScript code that executes in the context of the victim's browser. This type of XSS occurs entirely on the client side, with the malicious payload being processed by the DOM environment rather than being reflected or stored on the server [1].

Exploitation requires a privileged user (such as an administrator) to perform an action, such as clicking a crafted link or visiting a specially prepared page. The attacker does not need direct access to the site but must trick a user with the necessary privileges into interacting with the malicious content. Once triggered, the injected script runs in the browser of the victim user, enabling the attacker to perform actions on their behalf within the WordPress admin interface [1].

The impact of successful exploitation includes the ability to inject malicious scripts that can redirect visitors to attacker-controlled sites, display unwanted advertisements, or steal sensitive information such as session cookies. The vulnerability is known to be used in mass-exploit campaigns, targeting thousands of websites regardless of their size or popularity [1].

Mitigation is straightforward: users should update the Custom iFrame for Elementor plugin to version 1.0.14 or later, which contains the fix. For those unable to update immediately, it is recommended to contact their hosting provider or web developer for assistance. Patchstack users can enable auto-updates for vulnerable plugins to ensure timely patching [1].