CVE-2025-49939 identifies a stored Cross-site Scripting (XSS) vulnerability in the CrocoBlock JetElements plugin for Elementor, a widely used WordPress page builder extension. The vulnerability stems from improper neutralization of user-supplied input during the generation of web pages, which allows attackers to inject malicious scripts that are stored and later executed in the context of users visiting the affected site. This type of vulnerability can be exploited by an attacker with low privileges (PR:L) but requires user interaction (UI:R), such as a victim visiting a crafted page or interacting with malicious content. The vulnerability affects all versions up to and including 2.7.8. The CVSS 3.1 vector indicates network attack vector (AV:N), low attack complexity (AC:L), partial confidentiality, integrity, and availability impacts (C:L/I:L/A:L), and scope change (S:C), meaning the vulnerability can affect components beyond the initially vulnerable module. Although no public exploits have been reported, the stored XSS nature means that once exploited, attackers can steal session cookies, perform actions on behalf of users, or deliver further malware. The vulnerability is particularly concerning for websites that rely on JetElements for dynamic content generation and user interaction, as it can undermine trust and security of web applications.

For European organizations, this vulnerability poses a risk to the confidentiality, integrity, and availability of web applications using JetElements for Elementor. Exploitation could lead to session hijacking, defacement, unauthorized actions, or malware distribution, impacting customer trust and business operations. Given the widespread use of WordPress and Elementor in Europe, especially among SMEs and digital agencies, the potential attack surface is significant. Compromised websites could also be used as a pivot point for further attacks within corporate networks. The medium severity score reflects that while the vulnerability requires some user interaction and privileges, the impact on data confidentiality and integrity can be meaningful. Organizations in sectors with high web presence, such as e-commerce, media, and professional services, are particularly vulnerable to reputational damage and regulatory scrutiny under GDPR if personal data is exposed.

1. Monitor CrocoBlock and Elementor official channels for patches addressing CVE-2025-49939 and apply updates promptly once available. 2. Until patches are released, implement Web Application Firewall (WAF) rules to detect and block suspicious input patterns targeting JetElements components. 3. Enforce strict input validation and sanitization on all user-supplied data, especially in areas where JetElements renders content. 4. Deploy Content Security Policy (CSP) headers to restrict execution of unauthorized scripts and reduce the impact of XSS attacks. 5. Conduct regular security audits and penetration testing focusing on plugin vulnerabilities and XSS vectors. 6. Educate site administrators and users about the risks of interacting with untrusted content and encourage cautious behavior. 7. Limit user privileges to the minimum necessary to reduce the attack surface for privilege-dependent vulnerabilities. 8. Consider temporarily disabling or restricting JetElements features that accept user input until a patch is applied.