CVE-2025-54719 is a vulnerability classified as deserialization of untrusted data in the NooTheme Yogi - Health Beauty & Yoga WordPress plugin, affecting versions up to and including 2.9.2. Deserialization vulnerabilities occur when untrusted input is deserialized into objects without proper validation or sanitization, enabling attackers to inject malicious objects. This can lead to object injection attacks, which may allow remote code execution, privilege escalation, or data manipulation. The vulnerability requires low privileges (PR:L) and no user interaction (UI:N), making it easier to exploit remotely over the network (AV:N). The CVSS v3.1 score of 8.8 reflects the high impact on confidentiality, integrity, and availability (all rated high), indicating that successful exploitation could lead to full system compromise. No known exploits are currently reported in the wild, but the vulnerability's nature and ease of exploitation make it a significant risk. The plugin is commonly used in WordPress sites focused on health, beauty, and yoga sectors, which often handle sensitive customer data and e-commerce transactions. The lack of available patches at the time of publication increases the urgency for organizations to implement interim mitigations and monitor for exploitation attempts.

For European organizations, the impact of this vulnerability is substantial. Exploitation could lead to unauthorized access to sensitive customer data, including personal health information, payment details, and business-critical data, violating GDPR and other data protection regulations. Integrity of website content and transactional data could be compromised, leading to financial losses and reputational damage. Availability could also be affected if attackers execute denial-of-service or ransomware attacks via the injection vector. Given the plugin's focus on health and wellness sectors, organizations in these industries may face increased regulatory scrutiny and customer trust erosion. Additionally, the ease of exploitation without user interaction increases the likelihood of automated attacks targeting vulnerable sites. This could disrupt online services, e-commerce operations, and customer engagement platforms across Europe.

1. Immediate action should include monitoring for updates or patches from NooTheme and applying them as soon as they are released. 2. Until patches are available, restrict plugin access to trusted administrators only and disable or remove the plugin if feasible. 3. Implement Web Application Firewalls (WAFs) with rules specifically designed to detect and block deserialization attacks and object injection payloads. 4. Conduct thorough code reviews and security assessments of the plugin usage within the environment to identify and mitigate unsafe deserialization practices. 5. Employ network segmentation and least privilege principles to limit the impact of a potential compromise. 6. Enable detailed logging and monitoring to detect anomalous behavior indicative of exploitation attempts. 7. Educate site administrators about the risks of installing untrusted plugins and the importance of timely updates. 8. Consider deploying runtime application self-protection (RASP) tools that can detect and prevent exploitation of deserialization vulnerabilities in real time.