CVE-2025-12484 is a stored Cross-Site Scripting (XSS) vulnerability identified in the 'Giveaways and Contests by RafflePress – Get More Website Traffic, Email Subscribers, and Social Followers' WordPress plugin, affecting all versions up to and including 1.12.19. The root cause is insufficient sanitization and escaping of user-supplied input, specifically multiple social media username parameters, during web page generation. This allows an unauthenticated attacker to inject arbitrary JavaScript code that is stored persistently and executed in the browsers of any users who visit the affected pages. The vulnerability is classified under CWE-79, indicating improper neutralization of input during web page generation. The CVSS v3.1 base score is 7.2 (high), reflecting network attack vector, low attack complexity, no privileges required, no user interaction, and a scope change with partial confidentiality and integrity impacts but no availability impact. Exploitation could lead to theft of session cookies, redirection to malicious sites, or execution of unauthorized actions on behalf of users. No patches or exploit code are currently publicly available, but the vulnerability is published and should be considered exploitable. The plugin is widely used for marketing and engagement purposes on WordPress sites, making it a valuable target for attackers seeking to compromise visitor trust or steal sensitive information. The vulnerability affects all versions, indicating a systemic issue in input handling within the plugin's codebase.

For European organizations, this vulnerability poses significant risks, especially for businesses relying on WordPress-based marketing and promotional activities using the affected plugin. Exploitation could lead to unauthorized access to user sessions, theft of personal data, and reputational damage due to compromised website integrity. Attackers could leverage the vulnerability to conduct phishing campaigns or spread malware by injecting malicious scripts. This is particularly concerning for sectors such as e-commerce, digital marketing agencies, and any organization engaging customers through online giveaways or contests. The confidentiality and integrity of user data are at risk, potentially leading to GDPR compliance issues and financial penalties. The lack of required authentication and user interaction lowers the barrier for exploitation, increasing the threat level. While availability is not directly impacted, the indirect effects of trust erosion and potential blacklisting by browsers or search engines could affect business continuity and customer engagement.

Immediate mitigation should focus on updating the 'Giveaways and Contests by RafflePress' plugin to a patched version once it becomes available. Until then, organizations should implement strict input validation and output encoding for all user-supplied data related to social media usernames within the plugin's scope. Employing a Web Application Firewall (WAF) with custom rules to detect and block suspicious script injection attempts targeting the affected parameters can reduce risk. Conduct thorough code reviews and consider temporarily disabling the plugin if feasible to eliminate exposure. Additionally, monitor web server logs and user reports for signs of exploitation or anomalous behavior. Educate website administrators on safe plugin management and the importance of timely updates. Implement Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts on affected pages. Finally, ensure incident response plans include steps to handle potential XSS exploitation scenarios.