CVE-2025-62923 is a medium severity DOM-based Cross-site Scripting (XSS) vulnerability affecting Debuggers Studio's Marquee Addons for Elementor plugin, specifically versions up to 3.7.12. The vulnerability stems from improper neutralization of user-supplied input during the generation of web pages, which allows malicious scripts to be injected into the Document Object Model (DOM) of affected websites. Unlike reflected or stored XSS, DOM-based XSS occurs entirely on the client side, making it harder to detect and mitigate through traditional server-side filtering. Exploitation requires no authentication but does require user interaction, such as clicking a crafted link or visiting a malicious page that triggers the vulnerable script. The CVSS vector (AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N) indicates network attack vector, low attack complexity, no privileges required, user interaction required, scope changed, and partial impact on confidentiality and integrity but no impact on availability. This vulnerability can allow attackers to execute arbitrary JavaScript in the context of the victim's browser, potentially leading to session hijacking, data theft, or manipulation of webpage content. Although no known exploits are currently in the wild, the widespread use of Elementor and its addons in WordPress sites makes this a significant concern. The vulnerability was published on October 27, 2025, and no official patches or updates have been linked yet, emphasizing the need for immediate attention from site administrators.

For European organizations, this vulnerability poses a moderate risk primarily to websites using WordPress with the Elementor page builder and the Marquee Addons plugin. Successful exploitation can lead to theft of sensitive user data, session tokens, or unauthorized actions performed on behalf of users, undermining trust and potentially violating data protection regulations such as GDPR. Public-facing websites, especially those handling user accounts, e-commerce transactions, or sensitive information, are at higher risk. The impact on confidentiality and integrity can lead to reputational damage, legal consequences, and financial losses. Since availability is not affected, the threat is more subtle but still critical in terms of data security and user trust. The requirement for user interaction means phishing or social engineering campaigns could be used to trigger the exploit, increasing the attack surface. Organizations with limited web security monitoring or outdated plugins are particularly vulnerable.

1. Monitor official Debuggers Studio and Elementor channels for patches addressing CVE-2025-62923 and apply updates immediately upon release. 2. Until a patch is available, consider disabling or removing the Marquee Addons plugin if feasible to eliminate exposure. 3. Implement strict Content Security Policy (CSP) headers to restrict execution of unauthorized scripts and reduce the impact of DOM-based XSS. 4. Employ web application firewalls (WAFs) with rules targeting XSS attack patterns to detect and block malicious payloads. 5. Conduct thorough input validation and sanitization on all user inputs and URL parameters used by the plugin, if customization is possible. 6. Educate users and administrators about the risks of clicking untrusted links to reduce the likelihood of successful user interaction exploitation. 7. Regularly audit and monitor website logs for suspicious activities indicative of XSS exploitation attempts. 8. Consider using security plugins that provide additional XSS protection for WordPress environments.