CVE-2025-6228 is a stored Cross-Site Scripting (XSS) vulnerability affecting the Sina Extension for Elementor plugin for WordPress, which includes multiple widgets such as Header Builder, Footer Builder, Theme Builder, Slider, Gallery, Form, Modal, and Data Table Free Elementor Widgets & Elementor Templates. This vulnerability exists in all versions up to and including 3.7.0 due to insufficient input sanitization and output escaping in the 'Sina Posts', 'Sina Blog Post', and 'Sina Table' widgets. An authenticated attacker with Contributor-level privileges or higher can exploit this flaw by injecting malicious JavaScript code into pages via these widgets. The injected scripts are stored persistently and executed whenever any user accesses the compromised page, potentially leading to session hijacking, privilege escalation, or redirection to malicious sites. The vulnerability has a CVSS 3.1 base score of 6.4, indicating a medium severity level. The attack vector is network-based with low attack complexity, requiring privileges equivalent to a Contributor role, and no user interaction is needed for the malicious script to execute once the page is loaded. The scope is changed, meaning the vulnerability affects components beyond the initially vulnerable plugin, impacting the confidentiality and integrity of user data but not availability. No known exploits are currently reported in the wild, and no official patches have been linked yet. The vulnerability is classified under CWE-79, highlighting improper neutralization of input during web page generation, a common vector for XSS attacks in web applications.

For European organizations, this vulnerability poses a significant risk especially for those relying on WordPress websites with the Sina Extension for Elementor plugin installed. Exploitation could lead to unauthorized script execution in the context of the victim's browser, enabling attackers to steal session cookies, impersonate users, deface websites, or conduct phishing attacks. This can result in data breaches, loss of customer trust, and regulatory non-compliance under GDPR due to unauthorized access or exposure of personal data. Since Contributor-level access is required, insider threats or compromised accounts could be leveraged to exploit this vulnerability. The persistent nature of stored XSS increases the risk as multiple users can be affected over time. Additionally, websites serving as customer portals, e-commerce platforms, or internal tools are particularly sensitive to such attacks. The medium severity score reflects a moderate but tangible risk that could escalate if combined with other vulnerabilities or social engineering tactics.

European organizations should immediately audit their WordPress installations for the presence of the Sina Extension for Elementor plugin and verify the version in use. Until an official patch is released, it is advisable to disable or remove the vulnerable widgets ('Sina Posts', 'Sina Blog Post', 'Sina Table') or the entire plugin if feasible. Implement strict role-based access controls to limit Contributor-level privileges only to trusted users and monitor for unusual activity indicative of account compromise. Employ Web Application Firewalls (WAFs) with custom rules to detect and block malicious script payloads targeting these widgets. Conduct regular security reviews and sanitize all user-generated content inputs manually if the plugin must remain active. Additionally, educate content contributors about the risks of injecting untrusted content and enforce multi-factor authentication to reduce the risk of account takeover. Monitoring website logs for suspicious script injections or unusual page modifications can also help in early detection. Once a patch is available, prioritize its deployment and test thoroughly in staging environments before production rollout.