CVE-2025-67997 is a security vulnerability classified as deserialization of untrusted data within the BoldThemes Travelicious WordPress theme, specifically affecting versions prior to 1.6.7. Deserialization vulnerabilities occur when untrusted input is deserialized by an application without proper validation or sanitization, allowing attackers to inject malicious objects. In this case, the vulnerability permits object injection, which can be leveraged to execute arbitrary code, escalate privileges, or manipulate application logic. The vulnerability arises from insecure handling of serialized data structures within the theme's codebase, potentially in features that process user input or external data. No CVSS score has been assigned yet, and no public exploits have been observed. However, the nature of deserialization vulnerabilities typically allows remote exploitation without authentication or user interaction, making it a critical attack vector. The vulnerability was reserved in December 2025 and published in February 2026, indicating recent discovery and disclosure. The absence of patch links suggests that a fixed version (1.6.7 or later) is either newly released or forthcoming. Organizations using this theme should be aware of the risk of remote code execution or other severe impacts if exploited.

The potential impact of CVE-2025-67997 is significant for organizations using the BoldThemes Travelicious theme. Successful exploitation could lead to remote code execution, allowing attackers to gain unauthorized control over affected web servers. This compromises confidentiality by exposing sensitive data, integrity by enabling unauthorized modifications, and availability by potentially disrupting services. Attackers could deploy malware, deface websites, steal customer information, or use compromised servers as pivot points for further attacks. Given that WordPress powers a large portion of websites globally, and Travelicious is targeted at travel-related businesses, the impact extends to organizations in the travel, hospitality, and tourism sectors. The ease of exploitation without authentication increases the risk of widespread attacks once exploit code becomes available. Additionally, compromised travel websites could damage brand reputation and customer trust, leading to financial losses and regulatory penalties.

To mitigate CVE-2025-67997, organizations should immediately update the BoldThemes Travelicious theme to version 1.6.7 or later once the patch is available. Until then, restrict access to any endpoints or features that handle serialized data inputs, especially those exposed to unauthenticated users. Implement web application firewalls (WAFs) with rules to detect and block suspicious serialized payloads or object injection attempts. Conduct thorough code reviews and security testing on customizations related to serialization. Monitor server and application logs for unusual activity indicative of exploitation attempts. Employ principle of least privilege on web server processes to limit the impact of potential compromise. Additionally, maintain regular backups and incident response plans tailored to web application compromises. Educate development and security teams about secure serialization practices to prevent similar vulnerabilities in the future.