CVE-2025-5184 is a medium-severity information disclosure vulnerability identified in the Summer Pearl Group Vacation Rental Management Platform versions up to 1.0.1. The vulnerability resides in an unspecified function within the HTTP Response Header Handler component. This flaw allows an attacker to remotely manipulate HTTP response headers, leading to unintended disclosure of sensitive information. The vulnerability does not require user interaction or authentication, and can be exploited over the network with low attack complexity. The CVSS 4.0 vector indicates no privileges are required (PR:L means low privileges, but the description states no authentication needed, so this may be a minor discrepancy), no user interaction, and only limited confidentiality impact, with no impact on integrity or availability. The vendor has addressed this issue in version 1.0.2, and upgrading to this version mitigates the risk. No known exploits are currently in the wild, and the vulnerability was published on May 26, 2025. The exact nature of the information disclosed is not detailed, but given the context of a vacation rental management platform, it could include sensitive customer data, booking details, or internal system information that could aid further attacks or privacy violations.

For European organizations using the Summer Pearl Group Vacation Rental Management Platform, this vulnerability poses a risk of unauthorized exposure of sensitive data. Such data leakage could include personal identifiable information (PII) of customers, payment details, or internal operational data, potentially violating GDPR and other privacy regulations. The information disclosure could facilitate further targeted attacks, such as phishing or credential stuffing, against the organization or its customers. Additionally, reputational damage and regulatory penalties could arise from failure to protect customer data. Since the platform is used in the vacation rental sector, which is significant in many European countries with high tourism activity, the impact could be substantial, especially for companies managing large volumes of bookings and customer information.

Organizations should promptly upgrade the Summer Pearl Group Vacation Rental Management Platform to version 1.0.2 or later, as this update addresses the vulnerability. Until the upgrade is applied, network-level protections such as web application firewalls (WAFs) should be configured to monitor and block suspicious HTTP response header manipulations. Security teams should audit logs for unusual HTTP header activity and conduct penetration testing focused on response header handling. Additionally, organizations should review and minimize the amount of sensitive information included in HTTP response headers to reduce exposure risk. Implementing strict access controls and network segmentation around the platform can limit the attack surface. Finally, organizations should ensure compliance with data protection regulations by promptly notifying affected individuals and authorities if a data breach is suspected.