CVE-2025-62923 is a DOM-based Cross-site Scripting (XSS) vulnerability identified in the Marquee Addons for Elementor plugin by Debuggers Studio, affecting all versions up to 3.7.12. The vulnerability stems from improper neutralization of input during the generation of web pages, specifically within the plugin's handling of marquee elements. DOM-based XSS occurs when client-side scripts write untrusted data to the Document Object Model without proper sanitization, enabling attackers to inject and execute arbitrary JavaScript in the victim's browser. This can lead to theft of session tokens, defacement, or redirection to malicious sites. Since the vulnerability is client-side and does not require server-side code execution, it can be triggered by tricking users into visiting crafted URLs or interacting with malicious content. No CVSS score has been assigned yet, and no public exploits are known. The plugin is widely used in WordPress sites leveraging Elementor for enhanced marquee effects, making a broad range of websites potentially vulnerable. The lack of a patch link indicates that a fix may not yet be available, emphasizing the need for immediate attention. The vulnerability affects confidentiality and integrity primarily, with availability impact being minimal unless combined with other attacks. The attack vector is web-based, requiring user interaction but no authentication, which increases the risk profile. Given the plugin’s popularity in Europe, especially in countries with high WordPress adoption, this vulnerability could be leveraged in targeted phishing or web-based attacks.

For European organizations, this vulnerability poses significant risks, particularly for those relying on WordPress sites with Elementor and the Marquee Addons plugin for their web presence. Successful exploitation can lead to session hijacking, unauthorized actions on behalf of users, theft of sensitive data, and reputational damage. Organizations in sectors such as e-commerce, finance, healthcare, and government are especially vulnerable due to the sensitive nature of the data handled and the reliance on web applications for customer interaction. The vulnerability could be exploited to bypass access controls or deliver secondary payloads such as malware. Additionally, compromised websites can be used as vectors for broader attacks or to distribute misinformation. The lack of a patch increases exposure time, and the ease of exploitation via user interaction means phishing campaigns could be effective. This could also affect trust in digital services and compliance with data protection regulations like GDPR if personal data is compromised.

1. Monitor official Debuggers Studio and Elementor channels for patch releases and apply updates immediately once available. 2. Implement strict Content Security Policies (CSP) to restrict the execution of unauthorized scripts on affected web pages. 3. Employ web application firewalls (WAFs) with rules targeting DOM-based XSS patterns to detect and block malicious payloads. 4. Conduct thorough input validation and sanitization on all user-controllable inputs, especially those rendered in marquee elements. 5. Educate users and administrators about phishing risks and encourage caution when clicking on suspicious links. 6. Regularly audit and review third-party plugins for vulnerabilities and remove or replace those that are unmaintained or high risk. 7. Use security headers such as X-Content-Type-Options and X-Frame-Options to reduce attack surface. 8. Implement monitoring and logging to detect anomalous activities indicative of exploitation attempts. 9. Consider isolating critical web applications or using sandboxing techniques to limit impact if exploitation occurs.