The vulnerability identified as CVE-2025-64266 concerns the magepeopleteam Booking and Rental Manager plugin for WooCommerce, which suffers from a deserialization of untrusted data flaw. Deserialization vulnerabilities occur when untrusted input is deserialized without proper validation, allowing attackers to manipulate serialized objects to inject malicious payloads. In this case, the vulnerability enables object injection, which can lead to remote code execution, privilege escalation, or data manipulation. The affected versions include all versions up to and including 2.5.4. The plugin is used to manage booking and rental services within WooCommerce, a popular e-commerce platform. Although no public exploits are currently known, the nature of the vulnerability makes it a critical risk once weaponized. The lack of a CVSS score means the severity must be assessed based on technical characteristics: the vulnerability impacts core security properties (confidentiality, integrity, availability), can be exploited remotely without authentication, and does not require user interaction. This combination suggests a high severity level. The vulnerability was published in December 2025, with the issue reserved in October 2025, indicating recent discovery. No official patches or mitigations have been linked yet, so organizations must be vigilant and prepare to apply updates promptly.

For European organizations, this vulnerability poses significant risks, especially those relying on WooCommerce for booking and rental services. Exploitation could lead to unauthorized access, data breaches involving customer and booking information, service disruption, and potential compromise of the underlying web server. This could damage organizational reputation, lead to regulatory non-compliance (e.g., GDPR violations), and cause financial losses. The impact is heightened in sectors like tourism, hospitality, and rental services, which are prevalent in Europe. Additionally, the widespread use of WooCommerce in European e-commerce markets increases the attack surface. Organizations with inadequate security controls or delayed patch management are particularly vulnerable. The absence of known exploits provides a window for proactive defense, but also a risk that attackers may develop exploits rapidly given the vulnerability's nature.

1. Monitor official magepeopleteam and WooCommerce channels for patches addressing CVE-2025-64266 and apply updates immediately upon release. 2. Until a patch is available, restrict access to the Booking and Rental Manager plugin interfaces via network segmentation and firewall rules to limit exposure. 3. Implement strict input validation and sanitization on all data processed by the plugin to prevent malicious serialized objects from being accepted. 4. Employ Web Application Firewalls (WAFs) with custom rules to detect and block suspicious serialized payloads targeting the plugin. 5. Conduct regular security audits and code reviews of the plugin and related customizations to identify and remediate unsafe deserialization patterns. 6. Educate development and operations teams about the risks of deserialization vulnerabilities and secure coding practices. 7. Maintain comprehensive backups and incident response plans to quickly recover from potential exploitation. 8. Consider disabling or replacing the plugin with alternatives if immediate patching is not feasible.