CVE-2025-63562 is a vulnerability identified in the Summer Pearl Group Vacation Rental Management Platform versions prior to 1.0.2. The core issue is insufficient server-side authorization controls, which means that the backend does not adequately verify whether an authenticated user has the right to perform certain actions on resources. Specifically, attackers who have valid credentials but limited privileges can manipulate request parameters—such as owner identifiers or resource IDs—to perform unauthorized create, update, or delete operations on resources owned by other users. This flaw allows attackers to bypass intended access controls and potentially alter or remove data belonging to arbitrary users. The vulnerability does not require user interaction beyond authentication, and the attack vector is network-based with low attack complexity. The CVSS v3.1 score is 6.3, reflecting a medium severity level due to the impact on confidentiality and integrity, but limited by the requirement for authentication and no impact on availability. No public exploits have been reported yet, but the vulnerability poses a significant risk to the integrity and confidentiality of user data managed by the platform. The lack of patch links suggests that users must verify updates directly from the vendor or official sources. This vulnerability highlights the critical importance of enforcing strict authorization checks on the server side to prevent privilege escalation and unauthorized data manipulation.

For European organizations using the Summer Pearl Group Vacation Rental Management Platform, this vulnerability could lead to unauthorized access and modification of sensitive customer and business data. Attackers with valid credentials could manipulate bookings, customer information, or financial records, potentially causing data breaches, financial loss, and reputational damage. Given the platform’s role in managing vacation rentals, unauthorized changes could disrupt operations, leading to customer dissatisfaction and legal liabilities under GDPR due to improper handling of personal data. The impact on confidentiality and integrity is significant, as attackers can access and alter data without detection. Although availability is not directly affected, the operational disruption caused by unauthorized data changes could indirectly impact service continuity. The requirement for authentication limits exploitation to insiders or compromised accounts, but this still represents a critical risk in environments where credential theft or insider threats are possible. The absence of known exploits in the wild reduces immediate risk but does not eliminate the potential for future attacks.

European organizations should immediately verify their platform version and upgrade to Summer Pearl Group Vacation Rental Management Platform version 1.0.2 or later, where the vulnerability is addressed. In the absence of an official patch, organizations should implement strict server-side authorization checks to validate user permissions on all resource-related operations, ensuring that users can only act on resources they own or are authorized to manage. Conduct thorough access control audits and implement role-based access control (RBAC) policies to minimize privilege exposure. Monitor logs for unusual activity related to resource manipulation, especially from authenticated users with limited privileges. Employ multi-factor authentication (MFA) to reduce the risk of credential compromise. Regularly review and update security policies and train staff on secure credential handling. If possible, isolate the platform within segmented network zones to limit lateral movement in case of compromise. Engage with the vendor for timely security updates and advisories.