CVE-2026-14190 in Sina Extension Plugin
Summary
by MITRE • 07/27/2026
The Sina Extension for Elementor WordPress plugin before 3.10.2 does not escape a value reconstructed from request input in one of its unauthenticated AJAX handlers before reflecting it into the HTML response, allowing unauthenticated attackers to execute arbitrary JavaScript in the browser of anyone who triggers a crafted request.
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Analysis
by VulDB Data Team • 07/27/2026
The vulnerability resides within the Sina Extension for Elementor WordPress plugin, specifically affecting versions prior to 3102. This security flaw exists in one of the plugin's unauthenticated AJAX handlers where a value reconstructed from request input is not properly escaped before being reflected into the HTML response. The issue constitutes a classic cross-site scripting vulnerability that operates without requiring authentication, making it particularly dangerous as attackers can exploit it against any user who triggers a crafted request. The flaw enables arbitrary JavaScript execution in victims' browsers, potentially allowing for session hijacking, data theft, or further exploitation of compromised systems.
The technical implementation of this vulnerability follows CWE-79 principles related to cross-site scripting, where unsanitized input from HTTP requests is directly incorporated into dynamically generated HTML content without proper escaping mechanisms. The affected AJAX handler processes request parameters and reconstructs values that are subsequently reflected back in the HTML response without adequate sanitization or encoding. This creates a vector for attackers to inject malicious JavaScript code that executes in the context of legitimate users' browsers, leveraging the trust relationship between the user's browser and the vulnerable website.
From an operational perspective, this vulnerability poses significant risks to WordPress sites utilizing the Sina Extension for Elementor plugin. Attackers can craft malicious requests that, when triggered by unsuspecting users, execute arbitrary JavaScript code in their browsers. This could lead to session theft, credential harvesting, defacement of content, or redirection to malicious sites. The unauthenticated nature means that attackers do not need valid credentials to exploit the vulnerability, making it accessible to anyone with knowledge of the targeted site's structure. The impact extends beyond individual user sessions to potentially compromise entire website operations and user data integrity.
Mitigation strategies should prioritize immediate patching to version 3102 or later where the escaping mechanism has been properly implemented. Administrators should also consider implementing additional security measures such as content security policies that restrict script execution, input validation at multiple layers, and monitoring for suspicious AJAX requests. The vulnerability aligns with ATT&CK technique T1566 related to spearphishing attachments and payloads, as attackers could use this vulnerability to deliver malicious JavaScript through crafted requests. Network-level defenses including web application firewalls can help detect and block malicious requests attempting to exploit this specific XSS vector, while regular security audits should verify proper input sanitization across all plugin components handling user-supplied data.