CVE-2025-49262 in Sina Extension for Elementor Plugin
Summary
by MITRE • 06/06/2025
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in shaonsina Sina Extension for Elementor allows Stored XSS. This issue affects Sina Extension for Elementor: from n/a through 3.6.1.
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Analysis
by VulDB Data Team • 07/03/2025
The vulnerability identified as CVE-2025-49262 represents a critical cross-site scripting flaw within the shaonsina Sina Extension for Elementor plugin, specifically categorized under CWE-79 Improper Neutralization of Input During Web Page Generation. This weakness enables attackers to inject malicious scripts into web pages viewed by other users, creating a persistent security risk that can compromise user sessions and data integrity. The vulnerability manifests as a stored XSS attack, meaning that malicious payloads are permanently stored on the server and executed whenever affected pages are accessed, rather than requiring immediate user interaction with a crafted link. The affected version range spans from an unspecified starting point through version 3.6.1, indicating that all versions within this release cycle are potentially vulnerable to exploitation.
The technical exploitation of this vulnerability occurs through the improper handling of user input during the web page generation process within the Elementor page builder environment. When administrators or users interact with the Sina Extension for Elementor, input data that should be properly sanitized and escaped is instead directly incorporated into generated HTML content without adequate validation or encoding measures. This flaw allows attackers to inject malicious JavaScript code through various input fields or parameters within the plugin's interface, which then gets stored in the application's database or configuration files. The stored nature of this vulnerability means that once an attacker successfully injects malicious code, it will persistently execute against any user who views the affected pages, 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 can enable sophisticated attack vectors including session hijacking, credential theft, and data exfiltration. Attackers can leverage the stored XSS to steal cookies, modify page content, redirect users to malicious sites, or even perform actions on behalf of authenticated users. In the context of Elementor-based websites, where users often have elevated privileges and can modify significant portions of website content, this vulnerability creates a pathway for attackers to gain unauthorized access to sensitive administrative functions. The attack surface is further expanded when considering that Elementor is widely used across various website types, from simple blogs to complex enterprise platforms, making the potential impact of this vulnerability widespread. According to ATT&CK framework, this vulnerability maps to T1531 Credential Access and T1059 Command and Scripting Interpreter, demonstrating how the stored XSS can facilitate both credential theft and execution of malicious commands.
Mitigation strategies for CVE-2025-49262 should prioritize immediate version updates to the Sina Extension for Elementor plugin, with administrators upgrading to versions that contain proper input sanitization and output encoding measures. The remediation process involves implementing comprehensive input validation that filters or escapes all user-supplied data before it is processed or stored within the application's database. Security professionals should also consider implementing Content Security Policy (CSP) headers as an additional defensive measure to limit the execution of unauthorized scripts, though this should not be considered a substitute for proper input validation. Regular security auditing of plugin installations, particularly those with administrative capabilities, is essential to identify and remediate similar vulnerabilities. Organizations should also establish monitoring procedures to detect unauthorized modifications to website content and implement web application firewalls that can identify and block suspicious input patterns. The vulnerability underscores the importance of maintaining up-to-date security practices and conducting thorough security assessments of third-party plugins before deployment in production environments, as the failure to address such flaws can result in significant security breaches and potential regulatory compliance violations.