CVE-2025-62119 is a DOM-based Cross-site Scripting (XSS) vulnerability classified under CWE-79, found in the Add Featured Image Custom Link plugin developed by ViitorCloud Technologies Pvt Ltd. This vulnerability affects versions up to 2.0.0 and stems from improper neutralization of user-supplied input during web page generation, which allows malicious scripts to be injected and executed within the victim's browser context. The attack vector is network-based (AV:N), requires low attack complexity (AC:L), but demands high privileges (PR:H) and user interaction (UI:R). The vulnerability impacts confidentiality, integrity, and availability, as malicious scripts can steal sensitive information, manipulate page content, or disrupt service. The scope is changed (S:C), indicating that exploitation can affect resources beyond the vulnerable component. Despite the medium CVSS score of 5.9, the requirement for authentication and user interaction reduces the ease of exploitation. No patches or known exploits are currently available, highlighting the importance of proactive mitigation. The vulnerability is particularly relevant for web environments using this plugin, often integrated into WordPress or similar CMS platforms, where attackers might leverage it to escalate privileges or conduct targeted attacks.

For European organizations, this vulnerability poses a moderate risk primarily to web applications using the Add Featured Image Custom Link plugin. Successful exploitation could lead to unauthorized disclosure of sensitive data, session hijacking, or defacement of web content, impacting user trust and compliance with data protection regulations such as GDPR. The requirement for authenticated access and user interaction limits mass exploitation but does not eliminate targeted attacks, especially against high-value targets like government portals, financial institutions, or e-commerce platforms. Disruption of availability through injected scripts could also affect business continuity. Given the widespread use of WordPress and related plugins across Europe, organizations relying on this plugin should consider the potential reputational and operational impacts. Additionally, attackers might combine this vulnerability with social engineering to increase success rates, further elevating the threat level.

1. Immediately audit all web environments for the presence of the Add Featured Image Custom Link plugin and identify affected versions. 2. Disable or remove the plugin if it is not essential to reduce the attack surface. 3. Implement strict input validation and output encoding on all user-supplied data within the plugin’s scope to prevent script injection. 4. Enforce the principle of least privilege by limiting user roles that can access or modify plugin settings, reducing the risk posed by high privilege requirements. 5. Monitor web server and application logs for unusual activity indicative of attempted XSS exploitation, such as suspicious script payloads or repeated failed access attempts. 6. Educate users about the risks of interacting with untrusted links or content, as user interaction is required for exploitation. 7. Stay alert for official patches or updates from ViitorCloud Technologies and apply them promptly once available. 8. Consider deploying Web Application Firewalls (WAFs) with rules tailored to detect and block DOM-based XSS attacks targeting this plugin. 9. Conduct regular security assessments and penetration testing focusing on web application vulnerabilities, including DOM-based XSS.