CVE-2025-66064 identifies a Cross-Site Request Forgery (CSRF) vulnerability in the WordPress plugin 'Giveaways and Contests by RafflePress' developed by Syed Balkhi. This plugin facilitates the management of giveaways and contests on WordPress websites. The vulnerability exists in versions up to and including 1.12.20, allowing an attacker to craft malicious HTTP requests that can be executed by an unsuspecting administrator or user with sufficient privileges. Because the plugin lacks proper CSRF protections such as anti-CSRF tokens or proper validation of request origins, attackers can exploit this flaw remotely without requiring authentication or user interaction. The vulnerability primarily impacts confidentiality, potentially allowing unauthorized access to sensitive contest data or user information submitted through the plugin. However, it does not affect the integrity or availability of the system. The CVSS 3.1 base score is 5.3, indicating medium severity, with an attack vector of network (remote), low attack complexity, no privileges required, and no user interaction needed. No public exploits have been reported yet, but the vulnerability is publicly disclosed and should be addressed promptly. The lack of patch links suggests that fixes may be forthcoming or need to be obtained directly from the vendor. This vulnerability is significant for websites relying on this plugin for marketing or customer engagement, as exploitation could lead to unauthorized data disclosure or manipulation of contest outcomes.

For European organizations, this vulnerability poses a risk primarily to the confidentiality of data handled by the 'Giveaways and Contests by RafflePress' plugin. Organizations using this plugin to run promotions, contests, or giveaways could have sensitive participant information exposed or manipulated without authorization. This could lead to reputational damage, loss of customer trust, and potential violations of data protection regulations such as the GDPR if personal data is compromised. Although the vulnerability does not directly impact system integrity or availability, unauthorized actions performed via CSRF could indirectly affect business processes or contest fairness. The ease of exploitation—requiring no authentication or user interaction—heightens the risk, especially for websites with administrative users who might unknowingly trigger malicious requests. Given the widespread use of WordPress in Europe, especially among small and medium enterprises engaging in digital marketing, the threat could affect a broad range of sectors including retail, hospitality, and entertainment. However, the absence of known exploits in the wild currently limits immediate widespread impact.

European organizations should prioritize the following mitigation steps: 1) Monitor the vendor's official channels for patches or updates addressing CVE-2025-66064 and apply them promptly once available. 2) Implement Web Application Firewall (WAF) rules that detect and block suspicious CSRF attack patterns targeting the plugin endpoints. 3) Restrict administrative access to the WordPress backend by IP whitelisting or VPN access to reduce exposure to remote exploitation. 4) Enforce the use of security plugins that add CSRF protection layers or enhance nonce validation for form submissions within WordPress. 5) Educate administrators and privileged users about the risks of CSRF and encourage cautious behavior regarding unsolicited links or requests while logged into administrative accounts. 6) Regularly audit and review plugin usage and permissions, removing or disabling unused plugins to reduce attack surface. 7) Consider implementing Content Security Policy (CSP) headers to limit the execution of unauthorized scripts that could facilitate CSRF attacks. These measures collectively reduce the likelihood and impact of exploitation beyond generic patching advice.