CVE-2025-64287 is a vulnerability in the Edge-Themes Alloggio - Hotel Booking PHP application, specifically involving improper control of filenames in include or require statements. This flaw allows a Remote File Inclusion (RFI) attack, where an attacker can manipulate the filename parameter to include malicious remote files, leading to arbitrary code execution on the server. The vulnerability affects versions up to and including 1.8. The CVSS 3.1 score is 8.1, indicating high severity, with an attack vector classified as local (AV:L), low attack complexity (AC:L), requiring low privileges (PR:L), and user interaction (UI:R). The scope is changed (S:C), and the impact on confidentiality and integrity is high, with a low impact on availability. Although no known exploits are currently in the wild, the vulnerability poses a significant risk due to the potential for remote code execution and system compromise. The vulnerability arises from insufficient validation or sanitization of input controlling the include/require filename, allowing attackers to specify remote or local files to be included and executed by the PHP interpreter. This can lead to data theft, unauthorized access, defacement, or service disruption. The vulnerability is particularly critical in web-facing applications like hotel booking systems, which handle sensitive customer data and payment information. The lack of available patches at the time of publication increases the urgency for organizations to implement interim mitigations.

For European organizations, especially those in the hospitality sector using the Alloggio - Hotel Booking system, this vulnerability can lead to severe consequences. Attackers exploiting this flaw can execute arbitrary code remotely, potentially gaining unauthorized access to sensitive customer data, including personal identification and payment details, thus violating GDPR and other data protection regulations. The integrity of booking data and system configurations can be compromised, leading to fraudulent bookings or service disruptions. Availability may be impacted through denial-of-service conditions caused by malicious payloads. The breach of confidentiality and integrity can damage organizational reputation and result in financial penalties. Given the hospitality industry's reliance on uninterrupted online booking services, exploitation could disrupt business operations and customer trust. The requirement for local access and user interaction somewhat limits the attack surface but does not eliminate risk, especially in environments with multiple users or weak internal controls.

Organizations should immediately monitor for any suspicious activity related to file inclusion attempts in their web server logs. Until an official patch is released by Edge-Themes, implement strict input validation and sanitization on all parameters controlling file inclusion, ensuring only allowed filenames or paths are accepted. Employ PHP configuration hardening by disabling allow_url_include and restricting include_path directives to trusted directories. Use web application firewalls (WAFs) with custom rules to detect and block attempts to exploit file inclusion vulnerabilities. Limit user privileges to the minimum necessary to reduce the risk of privilege escalation. Conduct thorough code reviews and penetration testing focusing on file inclusion vectors. Isolate the booking application in a segmented network zone to contain potential breaches. Once patches become available, prioritize their deployment. Additionally, educate staff about phishing and social engineering risks that might facilitate user interaction required for exploitation.