CVE-2025-7399 is a stored cross-site scripting (XSS) vulnerability identified in the Betheme WordPress theme developed by MuffinGroup. The vulnerability exists in all versions up to and including 28.1.3 and is caused by improper neutralization of input during web page generation, specifically within an Elementor display setting. This flaw allows authenticated attackers with Contributor-level access or higher to inject arbitrary JavaScript code into pages. Because the malicious script is stored, it executes every time any user accesses the infected page, potentially compromising user sessions, stealing cookies, or performing unauthorized actions on behalf of users. The vulnerability stems from insufficient input sanitization and lack of proper output escaping, which are critical in preventing XSS attacks. The CVSS 3.1 base score is 6.4, reflecting a medium severity with network attack vector (AV:N), low attack complexity (AC:L), privileges required (PR:L), no user interaction (UI:N), and a scope change (S:C) indicating that the vulnerability affects resources beyond the initially vulnerable component. The impact on confidentiality and integrity is low to moderate, while availability is not affected. No public exploits have been reported yet, but the presence of this vulnerability in a widely used WordPress theme makes it a significant concern. Betheme is a popular commercial WordPress theme used globally, often in business, e-commerce, and portfolio websites. The vulnerability requires authenticated access at Contributor level or above, which means attackers must have some level of legitimate access, but this is not uncommon in multi-user WordPress environments. The vulnerability highlights the importance of secure coding practices in theme development, especially input validation and output encoding in dynamic content generation.

The primary impact of CVE-2025-7399 is the potential for attackers with Contributor-level access to inject persistent malicious scripts into web pages, which execute in the browsers of any users visiting those pages. This can lead to session hijacking, theft of sensitive information such as cookies or credentials, unauthorized actions performed on behalf of users, defacement, or distribution of malware. For organizations, this can result in reputational damage, loss of customer trust, and potential regulatory consequences if user data is compromised. Since the vulnerability affects a widely used WordPress theme, many websites globally are at risk, especially those with multiple contributors or editors. The requirement for authenticated access limits exploitation to insiders or compromised accounts, but such scenarios are common in collaborative environments. The scope change in the CVSS vector indicates that the vulnerability can affect components beyond the initial attack surface, potentially impacting other parts of the website or connected systems. Although availability is not affected, the confidentiality and integrity of user data and site content are at risk. The absence of known exploits in the wild currently reduces immediate risk but does not eliminate the threat, as attackers may develop exploits once the vulnerability becomes widely known.

To mitigate CVE-2025-7399, organizations should first update the Betheme WordPress theme to a patched version once available from MuffinGroup. In the absence of an official patch, administrators should restrict Contributor-level access to trusted users only and review user roles to minimize unnecessary privileges. Implementing a Web Application Firewall (WAF) with rules to detect and block common XSS payloads can provide an additional layer of defense. Site administrators should audit existing pages for suspicious scripts or unauthorized content injections and remove any malicious code found. Enforcing Content Security Policy (CSP) headers can help limit the impact of injected scripts by restricting the sources from which scripts can be loaded. Developers and site maintainers should ensure that all user inputs, especially those affecting page display settings, are properly sanitized and escaped before rendering. Regular security scanning and monitoring for anomalous activity or changes in page content can help detect exploitation attempts early. Educating contributors about secure content management practices and the risks of XSS can reduce accidental introduction of vulnerabilities. Finally, maintaining regular backups of website content allows recovery in case of successful exploitation.