CVE-2025-2747 is an authentication bypass vulnerability classified under CWE-288, discovered in Kentico Xperience, a widely used content management and digital experience platform. The vulnerability specifically targets the Staging Sync Server component's password handling mechanism when configured with the None password type. This misconfiguration or design flaw allows an attacker to bypass authentication controls entirely, gaining unauthorized administrative access without needing valid credentials, privileges, or user interaction. The vulnerability affects all versions of Kentico Xperience up to and including 13.0.178. The CVSS v3.1 score of 9.8 reflects the critical nature of this flaw, highlighting its network attack vector, low attack complexity, and the fact that it does not require privileges or user interaction. Exploiting this vulnerability enables an attacker to manipulate administrative objects, potentially leading to full system compromise, data theft, unauthorized changes, or service disruption. Although no known exploits are currently reported in the wild, the vulnerability's characteristics make it a prime target for attackers once exploit code becomes available. The absence of patches at the time of disclosure necessitates immediate risk mitigation through configuration reviews and monitoring. The vulnerability's impact spans confidentiality, integrity, and availability, making it a severe threat to organizations relying on Kentico Xperience for their digital operations.

For European organizations, the impact of CVE-2025-2747 is significant due to the critical administrative access it grants attackers. Compromise of Kentico Xperience instances can lead to unauthorized data access, modification, or deletion, affecting sensitive customer and business information. The integrity of digital content and services managed through the platform can be undermined, causing reputational damage and operational disruptions. Availability may also be impacted if attackers manipulate or disable services. Given the widespread use of Kentico in sectors such as e-commerce, government, and media across Europe, the vulnerability poses a risk to critical digital infrastructure. Additionally, regulatory compliance risks arise under GDPR due to potential data breaches. The ease of exploitation without authentication or user interaction increases the likelihood of attacks, especially targeting internet-facing staging sync servers. Organizations may face financial losses, legal consequences, and erosion of customer trust if exploited.

Until an official patch is released, European organizations should immediately audit their Kentico Xperience deployments to identify staging sync servers configured with the None password type and reconfigure them to use strong, complex passwords. Network segmentation and firewall rules should restrict access to staging sync servers to trusted IP addresses only. Implement strict monitoring and logging of administrative activities and authentication attempts on Kentico systems to detect suspicious behavior early. Employ web application firewalls (WAFs) to block anomalous requests targeting the staging sync component. Regularly update and patch Kentico Xperience as soon as vendors release fixes. Conduct penetration testing focused on authentication mechanisms to verify the effectiveness of mitigations. Educate IT and security teams about this vulnerability to ensure rapid response. Consider temporary disabling of the staging sync feature if feasible until secure configurations or patches are applied. Maintain incident response readiness to contain and remediate potential breaches swiftly.