CVE-2025-63055 identifies a Stored Cross-site Scripting (XSS) vulnerability in the Master Addons for Elementor plugin developed by Liton Arefin. This vulnerability is due to improper neutralization of user-supplied input during the generation of web pages, which allows malicious scripts to be stored and executed in the context of the affected website. The vulnerability affects all versions up to and including 2.0.9.9. The CVSS v3.1 base score is 6.5, indicating medium severity, with an attack vector of network (remote exploitation), low attack complexity, requiring low privileges, and user interaction. The scope is changed, meaning the vulnerability can affect resources beyond the initially vulnerable component. Successful exploitation can lead to partial loss of confidentiality, integrity, and availability, such as session hijacking, defacement, or redirection to malicious sites. No public exploits have been reported yet, but the vulnerability poses a risk to websites using this plugin, particularly those with multiple users or public content submission features. The vulnerability was published on December 9, 2025, and no official patches or mitigations have been linked yet, emphasizing the need for proactive security measures.

For European organizations, especially those operating WordPress-based websites using the Master Addons for Elementor plugin, this vulnerability could lead to unauthorized script execution in users' browsers. Potential impacts include theft of session cookies, user credential compromise, defacement of websites, and distribution of malware via injected scripts. This can damage organizational reputation, lead to data breaches, and disrupt business operations. Given the widespread use of WordPress in Europe, sectors such as e-commerce, media, education, and government websites are particularly vulnerable. The partial compromise of confidentiality and integrity can also facilitate further attacks, including phishing or lateral movement within networks. The requirement for user interaction slightly reduces the risk but does not eliminate it, as social engineering can be used to trigger exploitation. The absence of known exploits in the wild currently lowers immediate risk but does not preclude future attacks.

1. Monitor official Liton Arefin and WordPress plugin repositories for patches addressing CVE-2025-63055 and apply updates immediately upon release. 2. Until patches are available, implement Web Application Firewall (WAF) rules to detect and block typical XSS payloads targeting the plugin. 3. Conduct thorough input validation and output encoding on all user-supplied data within the website, especially in areas where the plugin processes input. 4. Limit user privileges to the minimum necessary to reduce the risk of low-privilege exploitation. 5. Educate users and administrators about the risks of clicking on untrusted links or interacting with suspicious content to mitigate user interaction requirements. 6. Regularly audit website logs and monitor for unusual activity indicative of XSS exploitation attempts. 7. Consider disabling or restricting features of the plugin that accept user input if immediate patching is not feasible. 8. Employ Content Security Policy (CSP) headers to reduce the impact of potential XSS attacks by restricting script execution contexts.