CVE-2026-105879 in JetElements Plugin
Summary
by MITRE • 10/06/2026
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Crocoblock JetElements For Elementor jet-elements allows Stored XSS.This issue affects JetElements For Elementor: from n/a through 2.9.2.2.
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Analysis
by VulDB Data Team • 10/06/2026
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 is classified under the CWE-79 standard within the Common Weakness Enumeration framework, which details weaknesses related to the injection of client-side scripts into web pages viewed by other users. In the context of the Crocoblock JetElements plugin for Elementor, versions ranging from its initial release through version 2.9.2.2 are susceptible to this issue. The critical nature of this vulnerability lies in its classification as a Stored XSS attack vector rather than a reflected one. This distinction is significant because stored vulnerabilities persist on the target server, meaning that malicious payloads do not need to be manually triggered by an attacker via a crafted link for each victim; instead, they are saved within the application's database and served automatically when legitimate users access specific content areas of the website.
The technical root cause involves insufficient sanitization or validation of user-supplied input before it is processed and rendered in HTML output. When administrators or authorized contributors interact with JetElements features to create or modify page elements, they may inadvertently introduce malicious JavaScript code into fields that are not properly escaped. Because Elementor is a visual drag-and-drop builder widely used for designing WordPress sites, the attack surface includes various input fields such as custom CSS classes, HTML attributes, and text content areas within widget settings. If these inputs contain executable script tags or event handlers like onload or onerror without proper encoding, the web browser will execute them upon page load. This failure to neutralize special characters allows an attacker to inject scripts that run in the context of the victim's session, bypassing same-origin policy restrictions and gaining access to sensitive data protected by those policies.
The operational impact of this vulnerability is severe due to its potential for widespread exploitation against site visitors rather than just the administrator who uploads the payload. Once a malicious script is stored within a page element, every user visiting that specific part of the website will have their browser execute the code. This can lead to session hijacking, where attackers steal authentication cookies and tokens to impersonate legitimate users or administrators. It also enables credential harvesting through fake login forms injected into the DOM, defacement of the website's appearance by altering HTML structures, and redirection of traffic to malicious sites hosting malware or phishing attempts. Furthermore, because JetElements is a popular plugin with a large user base, successful exploitation can compromise numerous websites simultaneously if they are not patched, creating a significant risk for businesses relying on these pages for e-commerce transactions, customer data collection, or brand reputation management.
From an adversary perspective, this vulnerability aligns with the MITRE ATT&CK technique T1059.007, which covers JavaScript execution within web browsers as part of Command and Control or Collection phases. Attackers can leverage this capability to establish persistent access by injecting scripts that beacon back to a command-and-control server or exfiltrate data such as keystrokes and form submissions using techniques like Keylogging (T1056.001) or Screen Capture (T1113). The persistence of the stored payload ensures long-term impact, allowing attackers to maintain access even after initial detection attempts if the underlying vulnerability remains unpatched in older installations.
Mitigation strategies must focus on immediate remediation and defensive coding practices. The primary recommendation is to upgrade JetElements For Elementor to a version newer than 2.9.2.2 where this specific input validation flaw has been addressed by the developers. Until an update can be applied, administrators should implement strict Content Security Policy headers that restrict script execution sources, thereby preventing inline scripts from running even if they are injected into the DOM. Additionally, web application firewalls configured with rules to detect and block common XSS payloads in POST requests targeting Elementor endpoints can provide a layer of defense-in-depth. Developers integrating similar functionality must ensure all user inputs undergo rigorous server-side validation and output encoding according to OWASP guidelines before being rendered in HTML contexts, ensuring that special characters are converted into their corresponding HTML entities to prevent browser interpretation as executable code.