CVE-2025-68038 identifies a vulnerability in Icegram Express Pro, a WordPress plugin widely used for email marketing and subscriber management. The vulnerability arises from unsafe deserialization of untrusted data within the email-subscribers-premium module, allowing object injection attacks. Deserialization is the process of converting data from a format suitable for storage or transmission back into an object in memory. When this process is performed on untrusted input without proper validation or sanitization, attackers can inject malicious objects that the application will instantiate, potentially leading to remote code execution, privilege escalation, or data manipulation. The affected versions include all releases up to and including 5.9.11. Although no public exploits have been reported yet, the nature of deserialization vulnerabilities typically allows attackers to craft payloads that can bypass authentication or execute arbitrary code remotely. The vulnerability was reserved and published in December 2025, but no CVSS score has been assigned, and no patches have been linked yet. This indicates the vendor may still be working on a fix or that the vulnerability is newly disclosed. The lack of known exploits does not diminish the risk, as deserialization vulnerabilities are often critical due to their impact and exploitation ease. Organizations using Icegram Express Pro should prioritize identifying affected installations and prepare for patch deployment. Monitoring for anomalous deserialization attempts and restricting input sources can reduce exposure. This vulnerability is particularly relevant for organizations relying on WordPress-based marketing tools, as compromise could lead to data breaches, unauthorized access, or disruption of email campaigns.

The impact of CVE-2025-68038 on European organizations can be significant, especially for those relying on Icegram Express Pro for managing email subscribers and marketing campaigns. Exploitation could lead to remote code execution, allowing attackers to gain control over the affected web server or WordPress environment. This compromises confidentiality by exposing subscriber data, integrity by allowing modification or deletion of subscriber lists and campaign content, and availability by potentially disrupting email services or defacing websites. Given the integration of such plugins in digital marketing workflows, an attack could also damage brand reputation and lead to regulatory non-compliance under GDPR if personal data is exposed. The ease of exploitation through crafted input without authentication requirements increases risk. Organizations in sectors such as e-commerce, media, and public services that use WordPress extensively are particularly vulnerable. The lack of current exploits provides a window for proactive mitigation, but the threat remains high due to the critical nature of deserialization vulnerabilities.

1. Immediately inventory all WordPress installations to identify those using Icegram Express Pro, particularly versions up to 5.9.11. 2. Monitor vendor communications closely for official patches or updates addressing CVE-2025-68038 and apply them promptly upon release. 3. Implement Web Application Firewall (WAF) rules to detect and block suspicious deserialization payloads or unusual POST requests targeting the email-subscribers-premium component. 4. Restrict input sources and sanitize all data before deserialization, employing allowlists or strict validation where possible. 5. Conduct regular security audits and penetration testing focusing on plugin vulnerabilities and deserialization attack vectors. 6. Employ least privilege principles for WordPress user roles and server permissions to limit the impact of potential exploitation. 7. Enable logging and alerting for anomalies in plugin behavior or unexpected object instantiations. 8. Educate development and IT teams about the risks of unsafe deserialization and secure coding practices. 9. Consider temporary disabling or replacing the plugin with alternative solutions if immediate patching is not feasible. 10. Ensure backups are current and tested to enable recovery in case of compromise.