CVE-2025-62744 identifies a stored cross-site scripting (XSS) vulnerability in the Chris Steman Page Title Splitter plugin, versions up to 2.5.9. The vulnerability stems from improper neutralization of input during web page generation (CWE-79), which allows malicious input to be stored and later rendered in a web page without adequate sanitization. This results in the execution of arbitrary JavaScript in the context of users visiting affected pages. The CVSS 3.1 base score is 6.5, indicating medium severity, with an attack vector of network (AV:N), low attack complexity (AC:L), requiring privileges (PR:L), and user interaction (UI:R). The scope is changed (S:C), meaning the vulnerability can affect components beyond the initially vulnerable component. The impact affects confidentiality, integrity, and availability at a low level. Although no public exploits are known, the vulnerability could be leveraged by attackers to steal session cookies, perform actions on behalf of users, or deliver malicious payloads. The vulnerability is particularly relevant for websites using the Page Title Splitter plugin to manipulate page titles dynamically, where user input is incorporated without proper sanitization or encoding. The lack of available patches at the time of publication necessitates immediate attention to alternative mitigations.

For European organizations, this vulnerability poses a risk primarily to web applications using the Chris Steman Page Title Splitter plugin. Exploitation could lead to unauthorized access to user sessions, data leakage, and potential defacement or disruption of services. This is especially critical for organizations handling sensitive user data or financial transactions, such as e-commerce platforms, governmental portals, and online service providers. The medium severity score reflects moderate risk, but the requirement for user interaction and privileges limits immediate widespread exploitation. However, successful attacks could undermine user trust, violate data protection regulations like GDPR, and result in reputational damage and financial penalties. The vulnerability's stored nature means malicious scripts persist, increasing exposure duration and risk to repeated visitors.

Organizations should monitor for updates from the vendor and apply patches promptly once available. Until patches are released, implement strict input validation and output encoding on all user-supplied data incorporated into page titles or other dynamic content. Employ Content Security Policy (CSP) headers to restrict script execution and reduce XSS impact. Conduct regular security audits and penetration testing focusing on input handling in web applications. Educate users and administrators about the risks of clicking suspicious links or interacting with untrusted content. Consider disabling or replacing the Page Title Splitter plugin if it is not essential. Additionally, implement web application firewalls (WAFs) with rules to detect and block common XSS payloads targeting this vulnerability.