CVE-2025-4783 is a stored Cross-Site Scripting (XSS) vulnerability affecting the Exclusive Addons for Elementor WordPress plugin, specifically in the Countdown Timer Widget's HTML attributes. This vulnerability arises from improper input sanitization and output escaping, allowing authenticated users with Contributor-level permissions or higher to inject arbitrary JavaScript code into pages. When other users access these compromised pages, the malicious scripts execute in their browsers. The vulnerability affects all versions up to and including 2.7.9.1 of the plugin. The CVSS 3.1 base score is 6.4, indicating a medium severity level. The attack vector is network-based with low attack complexity and requires privileges (Contributor or above) but no user interaction. The scope is changed, meaning the vulnerability can affect resources beyond the vulnerable component. The impact includes limited confidentiality and integrity loss but no availability impact. Stored XSS can be leveraged for session hijacking, privilege escalation, defacement, or delivering further malware payloads. Since the plugin is widely used in WordPress sites that utilize Elementor page builder, this vulnerability poses a significant risk to website integrity and user trust. No known exploits are currently reported in the wild, and no patches have been linked yet, indicating the need for prompt mitigation by site administrators.

For European organizations, this vulnerability can lead to unauthorized script execution on their websites, potentially compromising user data and session tokens, leading to account takeover or data theft. Organizations relying on WordPress with the Exclusive Addons for Elementor plugin are at risk of website defacement, loss of customer trust, and regulatory non-compliance under GDPR if personal data is exposed. The ability for contributors to inject scripts means insider threats or compromised contributor accounts could be exploited. The cross-site scripting can also be used to deliver phishing attacks or malware to visitors, impacting brand reputation and causing financial losses. Given the widespread use of WordPress in Europe, especially among SMEs and public sector entities, the impact can be broad, affecting e-commerce, government portals, and informational websites. The medium severity score suggests moderate risk but should not be underestimated due to the potential for chained attacks and data exposure.

1. Immediately restrict Contributor-level user permissions and review contributor accounts for suspicious activity until a patch is available. 2. Implement Web Application Firewall (WAF) rules to detect and block malicious script payloads targeting the Countdown Timer Widget HTML attributes. 3. Regularly audit and sanitize all user-generated content, especially in widgets and plugins, to prevent script injection. 4. Monitor website logs for unusual POST requests or content changes related to the affected widget. 5. Update the Exclusive Addons for Elementor plugin promptly once a security patch is released by the vendor. 6. Educate content contributors on secure content practices and the risks of injecting untrusted HTML or scripts. 7. Employ Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts on the website. 8. Conduct penetration testing focusing on XSS vectors in the affected plugin components to identify residual risks.