CVE-2025-64294 identifies a Missing Authorization vulnerability (CWE-862) in the WP Snow Effect plugin developed by d3wp, affecting all versions up to 1.1.15. This vulnerability arises because certain plugin functionalities lack proper Access Control List (ACL) enforcement, allowing unauthenticated remote attackers to invoke functions that should be restricted. The CVSS v3.1 base score is 5.3 (medium), with vector AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N, indicating network attack vector, low attack complexity, no privileges or user interaction required, unchanged scope, no confidentiality impact, limited integrity impact, and no availability impact. The flaw compromises the integrity of the WordPress site by enabling unauthorized modification or misuse of plugin features, potentially leading to unauthorized changes in site behavior or appearance. No patches or exploit code are currently available, and no active exploitation has been reported. The vulnerability is significant because WordPress is widely used, and plugins often have elevated privileges within the CMS environment. Attackers exploiting this flaw could manipulate plugin functionality, possibly leading to further attacks or site defacement. The issue was reserved on 2025-10-29 and published on 2025-11-03 by Patchstack. The absence of patches means organizations must rely on compensating controls until updates are released.

For European organizations, the vulnerability poses a risk primarily to the integrity of WordPress-based websites using the WP Snow Effect plugin. Unauthorized access to plugin functions could allow attackers to alter site features or content, potentially damaging brand reputation, disrupting user experience, or facilitating further attacks such as privilege escalation or injection of malicious code. Public sector websites, e-commerce platforms, and media outlets relying on WordPress are particularly at risk due to their visibility and criticality. Although the vulnerability does not directly impact confidentiality or availability, integrity compromises can lead to indirect impacts such as loss of customer trust or regulatory non-compliance under GDPR if site integrity affects personal data processing. The lack of authentication requirements lowers the barrier for exploitation, increasing risk exposure. The absence of known exploits in the wild currently reduces immediate threat but does not eliminate future risk, especially as threat actors often weaponize such vulnerabilities once public disclosure occurs.

1. Monitor official sources and the plugin vendor for patches and apply updates immediately once available. 2. Until patches are released, restrict access to the plugin’s functionality by implementing web application firewall (WAF) rules that block suspicious requests targeting WP Snow Effect endpoints. 3. Limit administrative and plugin management privileges strictly to trusted users to reduce risk of internal misuse. 4. Conduct regular security audits and integrity checks on WordPress sites to detect unauthorized changes early. 5. Employ WordPress security plugins that can enforce additional access controls or alert on anomalous plugin activity. 6. Consider temporarily disabling or uninstalling the WP Snow Effect plugin if it is not critical to site operations. 7. Educate site administrators on the risks of unauthorized plugin access and encourage strong credential policies. 8. Monitor web server logs for unusual access patterns related to the plugin. These targeted steps go beyond generic advice by focusing on compensating controls and proactive monitoring until official patches are available.