CVE-2025-47244 is a high-severity authentication bypass vulnerability identified in Inedo ProGet version 5, a package management system widely used for managing software artifacts. The vulnerability arises due to improper access control in the C# reflection layer of the application, allowing remote attackers to bypass authentication mechanisms and reach restricted functionality. Specifically, attackers can exploit this flaw by leveraging either anonymous access being enabled or by successfully conducting a Cross-Site Request Forgery (CSRF) attack. The exploitation does not require any user interaction or prior authentication, making it particularly dangerous. Attackers can cause a denial of service by repeatedly invoking the RestartWeb function in a loop, disrupting service availability. Additionally, they may obtain sensitive information, potentially compromising confidentiality and integrity of the system. The vulnerability is classified under CWE-288, which pertains to authentication bypass using alternate paths or channels. The CVSS v3.1 base score is 7.3, reflecting the ease of remote exploitation without privileges or user interaction, and the impact on confidentiality, integrity, and availability. No known exploits are currently reported in the wild, and no patches have been linked yet, indicating that organizations should prioritize mitigation and monitoring to prevent exploitation.

For European organizations, the impact of CVE-2025-47244 can be significant, especially for those relying on Inedo ProGet for software artifact management in their development and deployment pipelines. Successful exploitation could lead to unauthorized access to restricted functionalities, potentially allowing attackers to disrupt software delivery processes by causing denial of service or extracting sensitive configuration or operational data. This could affect the integrity of software supply chains, leading to downstream risks such as deployment of compromised packages or interruption of critical services. Given the vulnerability can be exploited remotely without authentication or user interaction, attackers could leverage this flaw to target multiple organizations at scale. Industries with stringent compliance requirements, such as finance, healthcare, and critical infrastructure sectors in Europe, may face regulatory and reputational consequences if this vulnerability is exploited. The ability to cause denial of service also poses risks to operational continuity, which is critical for organizations with high availability requirements.

European organizations should implement the following specific mitigation strategies: 1) Immediately review and disable anonymous access in ProGet if enabled, as this significantly reduces the attack surface. 2) Implement robust CSRF protections, including the use of anti-CSRF tokens and validating the origin of requests to prevent unauthorized command execution via CSRF attacks. 3) Monitor and restrict access to the ProGet management interfaces, ideally limiting access to trusted networks or VPNs. 4) Employ application-layer firewalls or web application firewalls (WAFs) to detect and block suspicious requests targeting the reflection layer or the RestartWeb function. 5) Conduct thorough logging and monitoring of ProGet usage to detect anomalous patterns such as repeated RestartWeb calls indicative of denial of service attempts. 6) Engage with Inedo for updates and patches, and plan for rapid deployment once available. 7) As a longer-term measure, consider isolating ProGet instances and applying the principle of least privilege to service accounts and user roles within the system to minimize potential damage from exploitation.