CVE-2025-60211 identifies an Incorrect Privilege Assignment vulnerability in the WooCommerce Registration Fields Plugin - Custom Signup Fields developed by extendons, affecting all versions up to and including 3.2.3. This vulnerability allows an attacker with some level of privileges (PR:L - low privileges) to escalate their privileges without requiring user interaction (UI:N). The vulnerability is remotely exploitable (AV:N) and impacts confidentiality, integrity, and availability at a high level (C:H/I:H/A:H). The flaw arises from improper handling of privilege assignments within the plugin's code, potentially allowing attackers to manipulate custom signup fields or user roles during the registration process. This can lead to unauthorized administrative access or other elevated privileges on WordPress sites using this plugin. WooCommerce is a widely used e-commerce platform, and this plugin is commonly employed to customize user registration fields, making the vulnerability relevant to many online stores. Although no public exploits are currently known, the high CVSS score and the nature of the vulnerability indicate a high risk of exploitation once proof-of-concept code becomes available. The vulnerability was reserved in late September 2025 and published in October 2025, indicating recent discovery and disclosure. The lack of available patches at the time of disclosure necessitates immediate risk mitigation strategies by affected organizations.

For European organizations, this vulnerability poses a significant risk due to the widespread adoption of WooCommerce for e-commerce operations. Successful exploitation can lead to unauthorized privilege escalation, allowing attackers to gain administrative control over websites, manipulate customer data, alter transaction records, or disrupt service availability. This can result in data breaches involving personally identifiable information (PII), financial fraud, reputational damage, and regulatory non-compliance, especially under GDPR. The impact extends beyond individual websites to the broader supply chain if compromised sites serve as entry points for further attacks. Given the remote exploitability and no requirement for user interaction, attackers can automate attacks at scale, increasing the threat level. The vulnerability's presence in a plugin that customizes registration fields also raises concerns about the integrity of user authentication and authorization processes, critical for maintaining secure e-commerce environments.

European organizations should immediately audit their WordPress installations to identify the presence of the WooCommerce Registration Fields Plugin - Custom Signup Fields and verify the version in use. Until a patch is released, restrict access to the WordPress admin interface and limit plugin management capabilities to trusted administrators only. Implement strict monitoring and alerting for unusual user role changes or privilege escalations. Employ Web Application Firewalls (WAFs) with custom rules to detect and block suspicious requests targeting the plugin's endpoints. Consider temporarily disabling or removing the plugin if it is not essential to business operations. Regularly back up website data and configurations to enable rapid recovery in case of compromise. Stay informed on vendor updates and apply patches immediately upon release. Additionally, conduct security awareness training for administrators to recognize signs of exploitation and ensure strong authentication mechanisms are in place for admin accounts.