CVE-2025-63042 is a stored Cross-site Scripting (XSS) vulnerability found in the Themeum Tutor LMS Elementor Addons plugin, specifically affecting versions up to and including 3.0.1. This vulnerability stems from improper neutralization of input during the generation of web pages, allowing malicious input to be stored and later executed in the context of users viewing the affected pages. The flaw enables attackers with low privileges (PR:L) to inject malicious scripts that execute when a victim interacts with the compromised content (UI:R). The vulnerability impacts confidentiality, integrity, and availability to a limited extent, as attackers can potentially steal session cookies, manipulate displayed content, or perform actions on behalf of users. The CVSS vector (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L) indicates network attack vector, low attack complexity, required privileges, and user interaction, with a scope change affecting resources beyond the vulnerable component. No known public exploits are currently reported, but the widespread use of Tutor LMS Elementor Addons in WordPress-based e-learning environments increases the risk of targeted attacks. The vulnerability is particularly concerning for educational platforms that rely on this plugin to deliver content and manage users, as exploitation could lead to unauthorized data access or manipulation. The absence of available patches at the time of reporting necessitates immediate attention to mitigation strategies.

For European organizations, especially educational institutions, training providers, and e-learning platforms using WordPress with Tutor LMS Elementor Addons, this vulnerability poses a risk of stored XSS attacks that can compromise user sessions, leak sensitive data, and enable unauthorized actions. The impact includes potential data breaches involving personal information of students and staff, defacement or manipulation of learning content, and disruption of service availability. Given the integration with Elementor, a widely used page builder, the attack surface is expanded, increasing the likelihood of exploitation. The medium severity rating reflects that while the vulnerability requires some user interaction and privileges, the consequences can still be significant in terms of data confidentiality and operational integrity. European organizations with strict data protection regulations (e.g., GDPR) may face compliance risks if such vulnerabilities are exploited and lead to data exposure. Additionally, reputational damage and loss of trust in educational services could result from successful attacks.

1. Monitor Themeum’s official channels for security patches addressing CVE-2025-63042 and apply updates immediately upon release. 2. Until patches are available, restrict user privileges to the minimum necessary, especially limiting content submission capabilities to trusted users. 3. Implement Web Application Firewall (WAF) rules to detect and block suspicious input patterns indicative of XSS payloads targeting Tutor LMS Elementor Addons. 4. Employ Content Security Policy (CSP) headers to reduce the impact of potential script injection by restricting sources of executable scripts. 5. Conduct regular security audits and code reviews of customizations related to the Tutor LMS Elementor Addons plugin to identify and remediate unsafe input handling. 6. Educate users and administrators about the risks of clicking on untrusted links or interacting with suspicious content within the LMS environment. 7. Utilize security plugins that provide additional input sanitization and output encoding layers for WordPress sites. 8. Maintain comprehensive logging and monitoring to detect anomalous activities that may indicate exploitation attempts.